[Text/Observer Network Wang Shichun]

On December 8, Hong Kong police seized a large number of dangerous weapons, including a compact glock)19/23 pistol and 105 rounds of ammunition. The bullets of this type of pistol are basically the same as those of the active pistol of the Hong Kong Police.

Military commentators of Observer Network judged that this gun was not a legitimate gun produced by Glock’s original factory, but a "black gun" assembled by American manufacturer Polymer80 products, without any logo, number and ballistic record. Although the product sold by Polymer80 is a semi-finished blank, the gun body has been processed to 80%, and the mob may smuggle the rest of the parts "processed with materials" and finally assemble this black gun.

If the mob used this gun to open fire in the crowd, then the Hong Kong police could not produce the ballistic record of this gun in the subsequent investigation. Today, with the intensification of conflicts in Hong Kong, if the Hong Kong police can’t produce ballistic records for a long time, it is bound to be framed by mobs and put the Hong Kong police at a disadvantage.

The real guns and magazines seized are from Hong Kong media.

Hong Kong TVB TV reported on December 8 that 75 police officers from the Organized Crime and Triad Bureau of the Hong Kong Police raided 11 addresses in Hong Kong and smashed a criminal gang in the early morning of the 8 th. During the illegal assembly in Mong Kok on October 20th, the gang used petrol bombs to attack the Mong Kok Police Station.

In the end, the Hong Kong police seized a large number of dangerous weapons in the mob’s home, including a compact glock)19/23 pistol and 105 bullets. Among them, three magazines are full of bullets. Li Guihua, Senior Superintendent of the Organized Crime and Triad Bureau, said that the Hong Kong Police Force had received a tip earlier that "(this gang) plans to use firearms to create chaos in today’s assembly and procession, including shooting police officers or framing police officers to hurt passers-by".

After studying by military commentators of Observer Network, the mob has a "black gun" modified from Glock 19/23 blank made by American manufacturer Polymer80.

Made by American manufacturer Polymer80, the blank of Glock 19/23 Source: Polymer80 Company official website.

Polymer80 is a company specializing in the manufacture of rough firearms within the scope of "permitted by American law". The rough produced by the company can circulate freely in the market without registration even if there is no serial number.The company’s pistol is characterized by no marks, numbers and ballistic records. The Hong Kong police can’t find available information through the ballistic records and serial numbers of firearms.Only through time-consuming and laborious criminal investigation can the source of guns be traced back.

It is worth mentioning that when Polymer80 sells gun blanks, it not only includes rough blanks, but also small parts, clamping fixtures and necessary drill bits. On the official website of Polymer80, there are also documents that teach you how to process it step by step to the usable level.

Glock in the hands of thugs is a product numbered PF940C. Although it is a rough imitation of the compact Glock 19/23, the machining degree has reached 80%, and all the basic parts of the sleeve seat have been machined, while the sleeve, trigger and barrel are sold separately.

When Polymer80 sells gun blanks, it not only includes blank, but also small parts, clamping fixtures and necessary drill bits. Source: Polymer80 Company official website.

The sleeve seat set is priced at $160, and another sleeve and barrel with high completion is priced at $450, but it shows that it is out of stock. Source: Polymer80 Company official website.

Glock pistol is one of the largest selling pistols in the world, so the parts of this pistol are not hard to find. In Southeast Asia, where gun crimes are frequent, many small weapons factories also independently produce the whole gun and parts of Glock pistols. Mobs may use parts smuggled from abroad to assemble a "black gun" without any marks, numbers and ballistic records.

The underground gun workshop in the Philippines is producing the American-made M1911 pistol, but it is not difficult to produce Glock’s parts.

The Hong Kong police displayed the captured Tatsu Yamashiro map from social media

At present, the Hong Kong police have two types of Glock, namely glock 17 and Compact Glock 19, which are currently used by the Hong Kong Police Small Boat Division (Maritime Emergency Response Team), Witness Protection Team, vip protection unit, Tracking Support Team, Airport Special Police Team, Railway Emergency Response Team, Counter-Terrorism Special Service Team and Special Task Company.

Due to the formal introduction channels, every Glock pistol of the Hong Kong police has a clear ballistic record.

Video screenshot of Hong Kong CTRU using Glock pistol.

Gun experts told Observer.com that if the mob framed the Hong Kong police with this gun, the Hong Kong police could not produce the ballistic record of this gun in the follow-up investigation. Today, with the intensification of conflicts in Hong Kong, if the Hong Kong police can’t produce ballistic records for a long time, it is bound to be hyped by mobs and framed at a disadvantage.

The Hong Kong police are investigating the purpose of the mob holding a gun. Li Guihua said that this is the first time that the Hong Kong police have seized real guns since the "chaotic demonstrations in Hong Kong", so they are very nervous. The source of this real gun will be one of the focuses of the Hong Kong Police Force’s close investigation in the future.

He stressed that this pistol is not a specification used by the Hong Kong Police Force. When someone asked at the press conference whether the perpetrators tried to frame the plainclothes police in Hong Kong this time, Li Guihua said, "I dare not say more now."

This article is an exclusive manuscript of Observer. It cannot be reproduced without authorization.

　　[car home Original Test Drive] On April 10th, SAIC MAXUS D90 Pro (abbreviated as D90 Pro in the text) was officially launched, and there were seven new models with the price range of 179,800-279,800 yuan. In fact, this car was unveiled at the Guangzhou Auto Show last year and accepted the reservation. After more than four months, it finally came. We also conducted a field test drive for this car at the first time. Compared with our AH-100 professional test site, the off-road test site is not difficult. Surely such a simple "test" can’t help this "tough guy" who is good at off-road?

　　The test drive of the SAIC MAXUS D90 Pro is equipped with a 2.0T diesel engine and matched with the 8AT automatic manual transmission. As a modified model of SAIC MAXUS D90, this car has also been given a brand-new naming method. The appearance of the word Pro makes us look forward to the improvement of its strength.

● Test drive models

　　Although it is said that there are seven models on the market, in fact, there is no fixed configuration version of the D90 Pro. The "recommended models" and prices are only for reference. Users can determine the configuration they want through the wise selection of SAIC MAXUS Spider, and specifically customize their favorite models.

● The appearance is masculine.

　　The body size of the D90 Pro is relatively large, which also determines that it is "born" with a strong gas field. The hexagonal mesh shape looks a bit exaggerated, but at present, "big mouth" is also a popular design style. For most users who choose the D90 Pro, they definitely bought a car to go out in the wild, so it is more important to choose a set of off-road kits. The off-road kits provided by SAIC MAXUS for the D90 Pro include original 18-inch off-road tires, wading throats, bottom off-road fenders, off-road wheel eyebrows and sand barriers, etc. The D90 Pro equipped with these kits is like an athlete in a competition suit, and its heroic spirit is compelling. It’s a little pity that we didn’t assemble all the off-road kits for this test drive.

　　Compared with the competitors of the same level, the body size of the D90 Pro does not fall in the wind, and the wheelbase length is obviously superior to that of the competitors of the same level. As a car with off-road capability as its selling point, the passability is a very important indicator. The minimum ground clearance of D90 Pro is 210mm, and the maximum wading depth is 800 mm. The low point of the chassis uses a waterproof one-way valve, and the approach angle is 28, and the departure angle is 25, so it will not easily rub when facing complex road conditions.

● Interior materials are graded.

　　The design style of the interior is quite fashionable. When you only look at the interior, it is hard to imagine that this is a medium-sized off-road vehicle. The silver decorative strips in the details, the large-area suede material coverage and the 12.3-inch central control screen all show you: "Although I am big, I can be exquisite."

　　The 12.3-inch central control screen is not so big in the current trend of big screen popularity. It feels just right on this car, and the clarity of the screen and the fluency of the system response are good. SAIC Ali Zebra Zhixing system can be said to be an "old friend" of everyone. Now this system has been upgraded to version 3.0, with more and more functions, including voice control, music, navigation, remote control of vehicles and other functions. The original car is also equipped with a high-tech navigation map.

　　The seat configuration of this test drive model is quite high. With the help of Spider Smart Choice, the rich seat functions are no longer exclusive to the top model. Users can customize their favorite configurations according to actual needs, and the diversified seat layout forms also give consumers more choices.

● Summary

　　In fact, there is not much to describe about the static part. The exterior design and interior design are two separate things, and it is most important for users who really want to buy a car to look pleasing to the eye. The spider intelligent selection function launched by SAIC MAXUS has raised the user’s independent choice to a new height. This intelligent customization service provides nearly 100 choices including powertrain, seat form, appearance kit, interior material and configuration equipment, and can directly place orders with the factory, and can also track the manufacturing status of the vehicles it has ordered in real time. With this feature, you will avoid a lot of time entangled in the configuration table.

● Power system

　　The 2.0T diesel engine mounted on the D90 Pro is named SAIC π (meeting the national VI b emission standard). This engine adopts two-stage supercharger, which can exert the maximum value of turbocharging under different load intensities, and has obvious effect on improving the low-speed torque of the engine. In addition, the friction work of the piston at medium and low speed is reduced by staggering the crankshaft centerline and the cylinder bore centerline, which is beneficial to improving fuel economy and reducing noise.

　　The so-called all-terrain intelligent timely four-wheel drive system is actually several torque output forms calibrated by manufacturers according to different road conditions and the conclusion of road test. If you are a "super hard core" cross-country player, you can also choose to install the part-time 4wd system. In terms of gearbox setting, this gearbox will not shift up automatically in manual mode, so as to ensure stronger torque output in low-speed gear and cope with more complicated off-road conditions.

● Simple off-road experience

　　The D90 Pro has smooth power and sensitive throttle adjustment. Although the size of the whole vehicle is not small, it doesn’t feel heavy when driving, and there will be no hesitation even when completing cross-country projects. During the test drive, for safety reasons, parking on the slope is not allowed at the site, so there is no difficulty in completing the climbing project (about 40 slope).

　　The overall texture of the chassis is relatively compact, the support effect of the suspension is good, it is somewhat tenacious, and the handling of bumps on the road surface is relatively simple. When walking on the continuous undulating road surface, the rear suspension has no obvious redundant ricochet, and there will be no feeling like sailing. The steering system in the form of electronic power is exchanged for a lighter steering feel, and driving in daily urban traffic environment will not feel tired.

　　During the cross-axle project, according to the coach’s arrangement, the rear differential lock was locked. Faced with such a challenge, I passed easily. In the subsequent experience, I didn’t lock the rear differential lock, but the vehicle could pass smoothly.

　　The suspension stroke of the D90 Pro is relatively long, and the ground clearance is enough, so it is more calm when facing the shell pit, and the phenomenon of bottoming will not easily occur. The wheel-to-wheel slip restriction effect is excellent, the response is rapid, and it is easier to pass.

More exciting videos are all on the car home video platform.

　　Two "opponents" were also found at the scene, and I experienced Haval H9. The overall feeling of Haval H9 is more "tight". From the chassis texture to the steering feel to the feeling of the accelerator pedal, H9 is more "hard", but the low-torque dynamic performance is better than D90 Pro. Like an athlete on the basketball court, H9 is like a center, heavy and slow, but as long as the action is in place, it must be an effective action; The D90 Pro is more like a power forward, with more agile performance and richer actions and means of "scoring". The setting of each project in the off-road test drive venue is relatively simple, and both cars can pass easily, so it is impossible to tell the absolute advantages and disadvantages in this competition.

● Summary

　　SAIC MAXUS D90 Pro is a car with high attention, which can be seen from the fiery degree of car home Forum. Through the spider intelligent selection function, users can have a high degree of "autonomy", which is undoubtedly a good thing. A short field test drive can’t have a deep driving experience for this car, but as far as the test items in the field are concerned, no one can stand the D90 Pro hard, which can also prove that the off-road ability of the D90 Pro is really good. Next week, we will welcome the D90 Pro test car. At that time, we will pull it to a professional off-road field in car home for the AH-100 off-road test, and then we will see how its "real strength" is. (Text/map/photo by car home Fu Bo)

● Extended reading

　　It’s been a week since June 18, and when the June 18 war resumed, Juhua, which was fully restarted in March this year, became the biggest dark horse that suddenly emerged. The data shows that during the Tmall 618 period, the cost-effective year-on-year transaction growth reached 86.5%, and the year-on-year order growth was 106%.

　　According to Alibaba, poly-cost-effective led to one-third of Tmall 618 transactions. According to the special report released by the authoritative Internet information service provider Analysys International on June 20th, Tmall’s market share during the promotion period was more than twice that of JD.COM and Pinduoduo combined, and one company accounted for nearly two-thirds of the total market share.

　　Source: Analysys

　　The above picture shows the GMV comparison among different platforms very intuitively. The GMV of Taobao Tmall is 100, while that of JD.COM and Pinduoduo is 32.7 and 9.9 respectively. Poly-cost-effective leads to one-third of the transactions, which means that its index of leading transactions reaches 33, which is higher than that of JD.COM and Pinduoduo. More directly, a single gathering is cost-effective, and the turnover during Tmall 618 exceeded three Pinduoduo. In this year’s 618 War, the pattern of the sinking market has been rewritten. As an amoy department, Juhua rushed into the sinking market and gained a lot of advantages in the sinking market.

　　On June 25th, Alibaba "officially announced" the overall growth of Tmall 618. Jiang Fan, president of Tmall, revealed at the launch conference of Tmall flagship store version 2.0 that the physical GMV of Tmall 618 increased by 38.5% year-on-year, and the DAU (daily active user) of mobile phone Taobao also increased by 29% year-on-year during Tmall 618.

　　Caption: Jiang Fan, president of Tmall, was at the launch of version 2.0 of Tmall flagship store.

　　JD.COM did not disclose GMV figures, but the so-called "order amount". According to the figures published by JD.COM, the year-on-year growth of the order amount is only 26.5%, which is 12 percentage points lower than that of Tmall. As the largest e-commerce platform in the whole network, the growth rate of Tmall is also significantly ahead of competitors such as JD.COM. The ultra-high-speed growth of poly-cost-effective has further consolidated the dominant position of Amoy in the whole market.

　　The cost-effective "revival" has also injected important traffic growth into mobile phone Taobao. The year-on-year growth rate of DAU of Hand Amoy is 29%, which is the highest since 2017. It also shows that it is cost-effective to tap the incremental population mainly based on the following heavy market users. Data from traffic monitoring third-party organizations such as Aurora Big Data and Questmobile all show that during the period of 618, the number of DAU (Daily Active Users) of mobile phone Taobao was in an absolute leading position, far exceeding other competitors.

　　Win the sinking market

　　A prominent feature of 618 this year is that "sinking market" has become a battleground for military strategists. In March this year, the comprehensive and cost-effective restart profoundly changed the war situation of 618 this year. Jiang Fan revealed a figure that 49% of Tmall 618′ s purchase users came from the 4 th, 5 th and 6 th tier cities.

　　The research of Aurora Big Data shows that although the penetration rate of mobile phone Taobao in third-tier and below cities is slightly lower than that in first-and second-tier cities, it is still as high as 54.8%, which is significantly higher than that in Pinduoduo (39.5%) and JD.COM (22.3%). It is the only mainstream e-commerce software with a penetration rate of over 50% in third-tier and below cities. The DAU index of Taobao’s sinking market in the third line and below is more than twice that of Pinduoduo.

　　In fact, before the start of Tmall 618, Alibaba began to deploy troops to strengthen the cost-effectiveness. Although Juhua was once an independent business unit of Amoy Department, it was merged into Tmall at the end of 2016. At the beginning of this year, Juhua became independent from Tmall and became a unified marketing platform for Taobao and Tmall, namely the marketing platform business unit. It is also known as Daju Cost-effective business unit.

　　The new big gathering cost-effective covers the core marketing tools of Taobao, such as gathering cost-effective, rushing to buy, selling every day, etc. These business lines occupy almost half of the "half of the country" in the new edition of the hand-scouring six squares.

　　Amoy is one of the most important goals of this year’s 618 strategy, which is to maximize the enthusiasm of users in the sinking market. Alibaba’s "618" this year is "the biggest investment in history" comparable to double 11’s, and the breakthrough has chosen to gather cost-effectiveness. The biggest game of "Ten Million Explosive Groups" is to maximize the marketing explosive power of the poly-cost-effective sale model.

　　According to Alibaba, during Tmall 618, there were more than 180 million transactions and explosions, more than 4,700 million transactions and more than 4,200 items with sales exceeding 10,000 pieces, making it easy to achieve the small goal of "10 million explosion groups and 100 million explosion groups every day". The "Ten Million Explosive Groups" directly promoted the high growth of poly-cost-effective transaction volume. During the period of 618, the growth rate of poly-cost-effective transaction volume reached 89% year-on-year, and the number of users and purchases in third-and fifth-tier cities both increased by more than 100% year-on-year.

　　Jiang Fan said at yesterday’s press conference: "The reason why Juhua can make such progress in just a few months is because it has returned to the original intention of ten years ago, that is, helping consumers find the best-priced goods in the whole network and helping businesses get customers with the most efficient marketing."

　　The best tool for brand customers.

　　Poly cost-effective comprehensive restart, and further become the brand’s best customer acquisition tool. Before Tmall 618, Juhua clearly put forward the goal of "bringing 300 million new customers to the brand", which was finally successfully achieved.

　　This year, 128 brands of Tmall 618 were among the "Billion Club". More than 100 brands such as CPB, L ‘Oré al, Watsons, Dr. Chengye, Telunsu and Peak surpassed double 11 last year, and the sales performance of some brands reached 40 times that of double 11 last year. In this promotion, almost all the brands that became the "Billion Club" participated in the cost-effective activities.

　　As the "biggest investment in history", 618 strives to convey "affordable" mind to consumers. The original price of Dyson hair dryer is nearly 3000 yuan, and 88VIP discount is added to the poly-cost-effective subsidy coupon, and the hand is as low as 1854 yuan. The brand with the original price of 1499 is bigger than an air conditioner, and it will be subsidized after the direct drop, and the hand price is 859 yuan. On June 18 th, Juhua launched the iPhone XR 618 yuan spike, which was less than 10% off the original price, causing the whole network to snap up. The investment of real money has undoubtedly greatly strengthened the influence of poly-cost-effectiveness on the consumer side.

　　Tmall is the brand’s favorite new product release platform. During this year’s Tmall 618, 80% of the core brands released new products on Tmall. With Tmall’s powerful data and operational capabilities, brands can also aggregate consumer information, understand consumer preferences, conduct new product research and development, and create "explosive models".

　　How to make "explosive models" sell better? Tmall has a set of marketing methodology. In Jia Luo’s view, the sale model is a means to help brands reach new customers as quickly as possible. In fact, there is also a very strong demand for branded goods in the sinking market. Brand goods with high cost performance can also "suck powder" quickly once they reach the sinking market. The long-term accumulated ability of Juhua has played a role in this respect. Before Juhua regained its independence from Tmall, it brought considerable business opportunities to the Tmall brand. In 2018, 80% of the brands that participated in Juhua came from new buyers, and the ability of Juhua to "pull new" can be seen. After the further restart, it was cost-effective, and the killer weapon of "Laxin" was used to the extreme. On June 25, the average growth rate of 400 brands participating in the launch of Tmall flagship store was as high as 47% during Tmall 618.

　　Empowering industrial belt to create new supply

　　The data shows that Handamoy has always been the largest shopping APP with the highest penetration rate in China, with more than 700 million consumers on this platform, with rich and diverse needs. How to meet their more and more diverse preferences, Amoy needs to work hard on the supply side.

　　The breakthrough of Tao department selection is still a good deal. In addition to bringing new customers to traditional head brands, Juhua has set its sights on small and medium-sized businesses on the platform. Through their digital transformation, they can provide more high-quality and affordable products, which can meet the diverse needs of consumers and create more business growth for middle-aged businesses.

　　Poly-cost-effective phase of the industry with businesses. In this year’s Tmall 618, a large number of small and medium-sized brands have entered people’s sight through Taobao, such as Yage electric mosquito swatter, Miaoyou children’s socks, Yi Enbei wet wipes, plant protection paper products, Fupai electric toothbrush, and Caramella socks. Although they don’t have the star aura of international brands, they are favored by consumers with high quality and low price. The reason behind it is also very simple. They have entered a cost-effective industrial belt support plan.

　　As a big manufacturing country, China manufacturers have strong production capacity, forming various types of industrial belts such as digital accessories, electric toothbrushes, socks and paper towels. Many industrial belt manufacturers have long been OEM for well-known brands, but they lack their own brands. The daily sale of Juhua’s products fills the shortcomings of industrial belt merchants in operation, technology and brand ability, which can not only help them upgrade their products by digital means, but also solve the sales channels of their goods.

　　On the other hand, when these industries bring merchants to the front desk, many categories of consumption upgrades have successfully reached the sinking market for the first time. For example, the electric toothbrush, a typical "consumption upgrade" commodity, was sold in the sinking market during Tmall 618. Fupai, an electric toothbrush brand in Taizhou, Zhejiang Province, sold 14,051 pieces in one minute after the opening of 618, and sold 400,000 pieces in 16 hours. Juhua cost-effectively pushed the industrial belt merchants and successfully awakened the upgrading needs of consumers in the sinking market. The industrial belt merchants also successfully won 466 million orders during the period of 618.

　　Observing this year’s 618, the strong rise of poly-cost-effective is the most noteworthy phenomenon. To some extent, the battle of sinking market has been rewritten. Juhua Cost-effective, by its own efforts, has driven more transactions than the whole platform in JD.COM and Pinduoduo, which means that it has become the natural choice for users in the sinking market.

　　For consumers, the "cost-effective" mentality has been established, and strong consumer insight and price competitiveness have greatly enhanced the user stickiness of the cost-effective platform. On the other hand, poly-cost-effectiveness has also become the integration of "Alibaba’s commercial operating system", which can effectively empower different types of businesses. The top brands can get more new customers through poly-cost-effectiveness, and the middle-waist businesses can also realize their own product evolution and brand upgrade through poly-cost-effectiveness.

　　The key for Amoy Department to maintain its own competitiveness lies in creating new supply for consumers so as to meet their new demands. And poly-cost-effectiveness is the key link, and it has withstood the test in the 618 War.

                                                                                                                                                                                                                             

　　Xinhua News Agency, Beijing, December 30thTitle: A century’s leap, dreaming of Beijing and Zhang — — Written on the occasion of the opening of Beijing-Zhangjia high-speed railway and the breakthrough of 35,000 kilometers in China high-speed railway.

　　Xinhua News Agency reporters Qi Zhongxi, Fan Xi, Ding Jing and Qin Jing

　　At 8: 30 on December 30, Beijing North Railway Station. The "Fuxing" intelligent EMU G8811 train was dispatched on time and headed for Prince Edward City Station, the core area of Zhangjiakou Division of the 2022 Beijing Winter Olympics.

　　On December 30th, on the platform of Beijing North Railway Station, the staff raised banners to celebrate the opening of Beijing-Zhangjia high-speed railway. Xinhua News Agency (photo by Peng Ziyang)

　　On December 30th, the G8811 train arrived at Prince Edward City Station, and the passengers got off and took photos in front of Prince Edward City Station. Xinhua News Agency (photo by Peng Ziyang)

　　This world’s most advanced train passes through the foot of Badaling Great Wall and runs side by side with Beijing-Zhangjiakou Railway more than 100 years ago.

　　A century’s span, two Beijing-Zhangjiakou lines, witnessed the course of Chinese from designing and building its first "road to success" to becoming a "pioneer" in opening intelligent high-speed rail.

　　As a symbol, China’s high-speed rail mileage has exceeded 35,000 kilometers, and the Chinese nation has built new glory on the great journey of national rejuvenation.

　　On December 30th, a Fuxing train was running in Xiahuayuan District, Zhangjiakou City, Chongli Railway. On the same day, Chongli Railway and Beijing-Zhangjiakou High-speed Railway were opened simultaneously. Xinhua news agency

　　A century’s leap to achieve "the country of high-speed rail"

　　There is a bronze statue of Zhan Tianyou at the foot of the Great Wall and next to Qinglong Bridge Station surrounded by green hills in Yanqing District, Beijing.

　　As the founder of the Beijing-Zhangjiakou Railway, he looks far away, and his profound eyes seem to have penetrated the great changes of a century … …

　　In 1905, the Beijing-Zhangjiakou Railway started construction. Badaling tunnel with a total length of 1091 meters is the key project of Beijing-Zhangjiakou Railway. At that time, there was not a trunk railway designed, built and operated independently by Chinese people in our country. Foreign engineers boasted that the engineer who could repair the Beijing-Zhangjiakou Railway in China had not yet been born!

　　Zhan Tianyou, who returned from studying abroad, broke this argument. He applied the herringbone railway used for logging in South America to the trunk railway in China for the first time. By extending the distance, he successfully passed the 33 rd & Permil; The steep slope shortens the Badaling tunnel, which originally needed to be excavated for more than 1,800 meters, to 1,091 meters.

　　On December 30th, the G8811 train stopped at Prince Edward Station. Xinhua News Agency reporter Xing Guangli photo

　　On December 30th, the G9101 train from Beijing North Railway Station to Zhangjiakou Station stopped at Badaling Great Wall Station. Xinhua News Agency (photo by Ren Chao)

　　On December 30th, the G2505 train left Zhangjiakou Station. Xinhua News Agency reporter Yan Yushe

　　Today, the Beijing-Zhangjia high-speed railway passes under it. Yang Cunxin, the stationmaster of Qinglongqiao Station, said that this is a "handshake" between the Beijing-Zhangjia high-speed railway and the old Beijing-Zhangjia railway, which symbolizes the development speed of China, and has achieved the three-dimensional intersection of Beijing and Zhangjiakou in the past century.

　　"In ‘ Zhan Tianyou ’ When you work under your feet, you must do a fine job. " Jiang Si, project manager of Beijing-Zhangjia High-speed Railway of the Fourth Company of China Railway Fifth Bureau Group, said.

　　Badaling Great Wall Station, which he is in charge of, is the only underground station of Beijing-Zhangjia high-speed railway, and it is also the largest underground station of high-speed railway in the world at present. When the project is repaired to the bottom of Qinglong Bridge Station, it is only 4 meters away from the ground, and it is necessary to ensure the normal running of the train above.

　　After a century’s leap, the railway construction in China has experienced the internal combustion engine era and the electrical era from age of steam in Zhan Tianyou, and quickly entered the high-speed rail era.

　　More than 100 years ago, the Beijing-Zhangjiakou Railway was the first section of beijing-baotou railway. From Baotou to Beijing by train, the train has to walk slowly for one night to get to Qinglong Bridge Station, and it will take half a day to get to Beijing after changing the front of the train here.

　　"After the opening of the Beijing-Zhangjia high-speed railway, the Zhanghu high-speed railway will be opened to traffic simultaneously with the Dazhang high-speed railway, and it only takes more than an hour to take the high-speed railway from Zhangjiakou to Beijing. After the Beijing-Zhangjia high-speed railway is connected with Zhanghu high-speed railway and Dazhang high-speed railway, the Inner Mongolia prairie will be realized in Beijing-Tianjin-Hebei region. One-day tour ’ 。” Huang Xin, director of the passenger transport department of China National Railway Group Co., Ltd. said.

　　The more the road network is woven, the more convenient the trip is. In December 2019, more than 10 railways including Beijing-Zhangjia high-speed railway were intensively opened.

　　China seems to be "small" — — The formation of the "meter" railway network in Henan, the ring-shaped high-speed railway in Shandong, the through train in Jiangxi, and the continuous extension of the "eight vertical and eight horizontal" high-speed railway main channel in China … …

　　People’s dreams have become bigger — — High-speed rail is vertical and horizontal, "say and go", and the travel radius of the people extends with the expansion of the "high-speed rail economic circle".

　　"More than one hundred years ago, my great-grandfather built the Beijing-Zhangjiakou Railway. Today, I personally took the Beijing-Zhangjia high-speed rail. I believe that if his old man is alive in heaven, he will be as proud and proud of the achievements of the country and the nation as I am. " Zhan Tianyou’s granddaughter Zhan Xin told reporters.

　　On December 30, a passenger looked out of the window on the G8811 train from Beijing North Railway Station to Prince Cheng Station. Paper-cuts with the theme of the 2022 Beijing Winter Olympics are posted on the window. Xinhua News Agency (photo by Peng Ziyang)

　　Leading by innovation, creating a "road of wisdom"

　　"Smart" is the most beautiful label of Beijing-Zhangjia high-speed railway.

　　The "Fuxing" intelligent EMU running on the Beijing-Zhangjia high-speed railway can drive by itself.

　　"The train has added ATO-related equipment for automatic operation control, realizing automatic driving with people on duty in the whole process, redefining the operation mode of the train." Zhang Bo, deputy director and researcher of the Locomotive and Rolling Stock Institute of the Academy of Iron and Steel Sciences, said.

　　According to the precise operation plan pre-planned by the ground dispatching center, the "Fuxing" intelligent EMU can automatically control the departure, acceleration, deceleration and parking. During the whole traveling process, the intelligent train safety monitoring system carried by the EMU has more than 2,000 monitoring points, which comprehensively monitors the state of the EMU in real time, and realizes self-perception of working state, self-diagnosis of running faults and self-decision of guiding safety.

　　On December 30th, on the G8812 train from Prince Edward Station to Beijing North Station, passengers operated the touch screen to connect hot water. Xinhua News Agency (photo by Peng Ziyang)

　　On December 30th, on the platform of Beijing North Railway Station, a passenger dragged his skis and boarded the G8811 train bound for Prince Edward Station. Xinhua News Agency (photo by Peng Ziyang)

　　On December 30th, an employee of China Railway Seventh Bureau who participated in the construction of Beijing-Zhangjia high-speed railway filmed the reconstruction project of Shacheng Station on the G2507 train. Xinhua News Agency reporter Feng Kaihua photo

　　In the past century, from the steam locomotives of Beijing-Zhangjiakou Railway, to diesel locomotives, to electric locomotives, and then to the Harmony and Fuxing EMUs, the changes of locomotives and trains reflect the increasing scientific and technological innovation strength of China.

　　Zhang Bo said that the "Fuxing" intelligent EMU was developed on the basis of the "Fuxing" with a speed of 350 kilometers per hour. In the design, it is considered that it is necessary to adapt to the line conditions of Beijing-Zhangjiakou high-speed railway and meet the service needs of the 2022 Beijing Winter Olympics.

　　At the bottom of the "Fuxing" intelligent EMU, there are two square boxes about 9 square meters. They are energy storage battery packs, which are usually charged by vehicles when running. When the catenary has power failure, they provide power for vehicles to ensure smooth arrival at the nearest station.

　　"Fuxing" intelligent EMU has superior aerodynamic performance and beautiful appearance. In terms of humanized service, intelligent environment awareness adjustment technology has been added, which can realize the adjustment of temperature, lighting and window color, and further improve the ride comfort. The whole vehicle is covered by wifi and equipped with a multilingual passenger information system, which can meet the needs of international passengers. The seat is installed in a slide way, allowing more wheelchairs to be added.

　　"Some carriages also add ski equipment storage cabinets for skiers to store snowboards and other equipment. The ski equipment lock identified by QR code is convenient and safe. " He said.

　　As the first intelligent high-speed rail in China, the quality supervision, supply, profile design and polishing of each rail of Beijing-Zhangjiakou high-speed rail also used big data and established a "health file".

　　According to the technical director of China Railway Materials Group, in the rail production process, they set up a data file for each rail. After the high-speed rail is put into operation, the "healthy" state of the whole rail line can be grasped by analyzing and studying the data, and the rail life cycle management can be realized.

　　Fan Yijiang, deputy director of the Comprehensive Research Office of the Comprehensive Transportation Research Institute of the National Development and Reform Commission, said that in the past 10 years, the changes in China’s high-speed rail have amazed the world. From a series of Harmony motor trains flying across the country to Fuxing leading the world standards, China high-speed railway has continuously created remarkable achievements.

　　On December 30th, in the waiting hall of Beijing North Railway Station, Ms. Yu from Zhangjiakou took a photo with the new ticket of Beijing-Zhangjiakou high-speed railway (right) and her old ticket of Beijing-Zhangjiakou railway in 2007. Xinhua News Agency (photo by Peng Ziyang)

　　Work hard and realize dreams, paving the way for "revival"

　　In 2022, Beijing Winter Olympics, visitors from all over the world will be able to take the Beijing-Zhangjia high-speed rail.

　　A hundred years ago, Zhan Tianyou wrote that "it is a shame to steal that our country is vast in territory and abundant in natural resources, but we have to rely on outsiders for our work along the way", and encouraged ourselves to lead the Chinese people in designing and building railways. However, the Beijing-Zhangjiakou Railway has not completely got rid of the fate of "relying on foreigners".

　　At that time, there was hardly any manufacturing industry in China, so it was impossible to produce the relevant equipment needed by the railway.

　　"Although the design and construction of the Beijing-Zhangjiakou Railway was completed by Chinese, all parts of the railway, even every nail, were imported from abroad." Gu Lin, secretary of the transfer workshop branch of Tangshan South Railway Station, said.

　　"Engineers are beneficial to the skills of the country. They should learn from each other and know everything, so that the country will be rich and strong, free from foreign aggression, and stand on its own feet on the earth." This was Zhan Tianyou’s profound understanding of building a road power 110 years ago, and it was also the cry of all Chinese at that time. The railway spirit of learning from each other and pursuing excellent products has since led generations of railway people to embark on the road of building dreams.

　　A hundred years later, China Railway has already entered the era of autonomy. Based on Beidou satellite and GIS technology, the designer deployed a "positioning" large network in Beijing-Zhangjia high-speed railway, which can provide intelligent services for the whole process of construction, operation, dispatching, maintenance and emergency by using the high-precision map of the railway.

　　"In the future, there will be the same ‘ Brain ’ 。” Hong Xia Li, the overall person in charge of intelligent engineering design of Beijing-Zhangjia high-speed railway designed by China Railway, said that through this brain, the staff can manage the lighting, temperature, humidity and other equipment in the control room, and conduct emergency command.

　　On December 30th, the G2418 train passed the Juyongguan Great Wall. Xinhua News Agency reporter Xing Guangli photo

　　On December 30th, on the G8811 train bound for Prince Edward Station, a passenger prepared to put his skis in the ski equipment storage cabinet. Xinhua News Agency (photo by Peng Ziyang)

　　On December 30th, a Fuxing train was driving on the Guanting Reservoir Bridge of Beijing-Zhangjia high-speed railway. Xinhua news agency

　　A century-old Beijing-Zhangjia bears Chinese’s dream of rejuvenation and the feeling of strengthening the country. The reconstruction of Beijing-Zhangjiakou is erecting another monument to railway power and national rejuvenation.

　　On the "report card" of the Institute of Iron Science, there is a sentence: Among the 254 important standards adopted by Fuxing, China standard accounts for 84%, and the overall design and key technologies are all independently developed, with completely independent intellectual property rights.

　　Relying on the construction of Jing-Zhang high-speed railway, China will further form a demonstration scheme of intelligent high-speed railway application, build a technical standard system of intelligent high-speed railway, and become a world-leading intelligent high-speed railway application country.

　　"The Beijing-Zhangjia high-speed railway has attracted worldwide attention, but this is not a miracle created by builders. It was a great era and the development of the motherland that created this miracle. " Lv Gang, deputy chief designer of Beijing-Zhangjiakou Railway Project designed by China Railway, said.

　　Time flies, and 2017 is about to close in a blink of an eye. This year, the supervision of the Civil Aviation Administration of China increased, and efforts were made to enhance passengers’ sense of gain; At the same time, technology has empowered the aviation industry, and aviation manufacturing has shown a thriving situation.

　　Looking back on 2017, what major events happened in China’s aviation industry, and what unforgettable moments? Let’s use eight key words together to string together this doomed extraordinary year.

　　Keywords: 1: Big plane

　　The Three Musketeers of the Big Aircraft will gather in the blue sky: C919 will fly into the sky, and the first flight of AG600 will be around the corner.

　　In China aviation industry, domestic passenger plane C919, amphibious plane AG600 and large transport plane Yun -20 are called "Three Musketeers". Each of them embodies the painstaking efforts of Chinese people and carries the dreams and expectations of Chinese people. And 2017 is undoubtedly a bumper year for domestic large aircraft.

　　On May 5th, the domestic C919 large passenger plane made its first successful flight at Shanghai Pudong Airport, which attracted worldwide attention. On November 10th, the C919 aircraft moved to Yanliang, Xi ‘an, and began to enter the next research and development flight test and airworthiness forensics.

　　On December 5th, the AG600 large-scale fire fighting/water rescue amphibious aircraft completed the high-speed taxiing test in zhuhai jinwan airport, and the first flight entered the countdown.

　　Expert comment: C919 is China’s first truly large civil aircraft, a key battle to upgrade China’s manufacturing industry and a landmark project to build an innovative country. China, a large aircraft project, has completely independent intellectual property rights, which not only breaks the monopoly of international aviation giants, but also reflects China’s progress in the field of high-tech innovation.

　　Keyword 2: "Black Flying"

　　UAV "Black Flying" Disturbs Flight Civil Aviation Administration orders real-name registration.

　　With the gradual rise of consumer-grade UAV industry, UAVs have rapidly changed from the original characteristics of "high threshold, strong professionalism and single use" to "low threshold, popularization, multi-function and daily use". According to the statistics of relevant departments, the number of UAVs in China has reached more than 600,000, and it is expected to rise to more than 4 million by 2020.

　　However, due to the increase in the number of drone brands and players, the phenomenon of "black flying" has become more and more serious. Since the beginning of this year, many airports, such as Kunming Airport, Shenzhen Airport, Mianyang Airport, Hangzhou Airport, Chengdu Airport and so on, have been disturbed by drones, resulting in the cancellation or delay of several flights, which has aroused social concern.

　　On May 16th, the Civil Aviation Administration of China issued the Regulations on the Registration Management of Civil Unmanned Aerial Vehicles in real-name registration system, requiring that the owners of civil unmanned aerial vehicles must register their real names from June 1st, 2017. After August 31, unmanned aerial vehicles that are not registered in the system are considered illegal.

　　Expert comment: With the rapid development of civil UAV technology, UAV interferes with civil aviation flight events from time to time. Increasingly strict supervision will promote a virtuous circle of the industry. real-name registration system has opened the prelude to the standardized operation of Chinese drones, and at the same time accelerated the reshuffle of the industry.

　　Keywords: 3: mixed reform

　　The mixed reform of central enterprises continues to accelerate: the three major state-owned airlines have released big moves

　　On the evening of March 27th, China Southern Airlines announced that it had signed a Share Subscription Agreement with American Airlines, and American Airlines would subscribe for 270 million H shares issued by China Southern Airlines with HK$ 1.553 billion.

　　On April 21st, Air China of China announced that it had received a notice from its controlling shareholder, China Aviation Group Corporation, and the National Development and Reform Commission replied that it agreed to reform the mixed ownership of air freight logistics of AVIC. AVIC will start the reform of mixed ownership of air cargo logistics. Air China and some of its subsidiaries are engaged in air cargo logistics business, and the specific implementation of mixed ownership reform may involve the company and its subsidiaries.

　　On June 19th, the mixed reform plan of China Eastern Airlines Logistics Co., Ltd., a subsidiary of China Eastern Airlines Group, ushered in a substantial start. China Eastern Airlines Logistics has diversified its shares. China Eastern Airlines Group, Legend Holdings Co., Ltd., Prologis Investment (Shanghai) Co., Ltd., Debon Logistics Co., Ltd., Greenland Financial Investment Holding Group Co., Ltd. and the core employees of China Eastern Airlines Logistics hold 45%, 25%, 10%, 5%, 5% and 10% of the shares of China Eastern Airlines Logistics respectively.

　　Expert’s comment: In recent years, the freight volume of China civil aviation has increased a lot, but the freight rate has dropped a lot, and the three major airlines have almost no profit margin. In contrast, private express companies such as SF Express, Yuantong and Shentong have set up their own cargo airlines. The global aviation logistics industry is transforming from the traditional air freight with low added value to the door-to-door integrated logistics service provider and the overall supply chain service provider with high added value of "big data+air freight+ground transportation". Through the reform of mixed ownership, the productivity of air freight can be liberated, it can be operated sustainably, and it can be bigger and stronger.

　　Keyword 4: Air WiFi

　　Civil Aviation Administration lifts the ban on aircraft using electronic equipment. Spring is coming in the air.

　　On September 18th, the Ministry of Transport deliberated and adopted the fifth revised Rules for the Examination and Approval of Operation Qualification of Large Aircraft Public Air Transport Carriers. Zhu Tao, deputy director of the Flight Standards Department of the Civil Aviation Administration, said at the press conference that from October, airlines can decide what kind of portable electronic equipment to use on the plane according to the evaluation results.

　　The regulations of the Civil Aviation Administration have triggered a heated discussion on WiFi in the air on the Internet. At present, China Eastern Airlines, Air China, China Southern Airlines, Hainan Airlines and other companies have started to test the on-board WiFi service. For example, China Eastern Airlines has realized the on-board Internet service on 70 wide-body passenger planes.

　　On the morning of October 18th, the MU5103 passenger plane of China Eastern Airlines conducted a live broadcast of the opening ceremony of the 19th National Congress of the Communist Party of China at an altitude of 10,000 meters, and passengers could listen to the speech of the Supreme Leader General Secretary by using WiFi in the air.

　　Expert’s comment: It is a great happy event that the policy completely bans the use of portable electronic devices such as mobile phones on airplanes. However, the release of the policy does not mean that the ban will be lifted immediately. It will take time for the specific implementation, and passengers should not challenge the current regulations of "turning off mobile phones during the whole flight". After the airlines released the restrictions after the safety assessment, passengers could watch movies and listen to music on the "flight mode" mobile phone during the cruise.

　　Keyword 5: Flight punctuality rate

　　The punctuality rate of flights fell into a trough, and the Civil Aviation Administration issued a "ruthless move"

　　As a reflection of the overall transportation quality of civil aviation, the punctuality rate of flights has always been the focus of public attention. Data show that from January to August this year, the average punctuality rate of civil aviation flights nationwide was 66.22%, down 9.27% year-on-year, and the average delay time was 30 minutes, up 11 minutes year-on-year.

　　On the evening of September 21st, the Civil Aviation Administration of China issued "Several Policies and Measures on Controlling the Total Operating Amount and Adjusting the Flight Structure to Improve the punctuality of flights". Starting from this winter and spring season, the total operating amount and flight structure of flight schedules will be controlled to ensure safe operation and fully improve the punctuality of flights. Among them, the Capital Airport and Pudong Airport were punished for failing to meet the standard for many times. The Civil Aviation Administration requires it to reduce the number of departure flights according to the goal of 75% of the airport capacity standard.

　　In October, the normal flight rate in China reached 83.29%, a year-on-year increase of 2.39%. This is the highest normal rate for 101 consecutive months since May 2009.

　　Expert comment: China’s flights maintain double-digit growth every year, but the average annual increase of route mileage is only about 3%, which also makes the flight operation pressure more and more serious. In order to ensure the flight safety of civil aviation and improve the normal flight rate, the Civil Aviation Administration issued the "most stringent" flight control regulations in history to strictly control flight growth. The New Deal officially landed at the end of October, and we expect our flights to be more and more punctual.

　　Keyword 6: Civil aviation charter flights

　　"Thank the motherland"! Civil aviation chartered flights twice to help stranded passengers return home

　　On September 30th, China tourists trapped by the hurricane excitedly waved the national flag, ready to board a charter flight and return to the motherland. People’s Network Wang Chushe

　　"Thank the motherland for remembering us and taking us home!" This may be the most frequently said sentence by China tourists stranded overseas for some reason this year …

　　On September 18th, category 5 hurricane "Irma" ravaged the Caribbean, and the island country Dominica was hit hard. Nearly 400 Chinese personnel were forced to move to neighboring Antigua and Barbuda to wait for rescue. On the evening of September 29th, China Eastern Airlines dispatched two chartered planes to fly over the airspace of 19 countries to Vere, Antigua and Barbuda, according to the mission requirements of the Civil Aviation Administration of China to send Ming Chuan telegrams. At Bird Airport, the Chinese personnel transferred from Dominica were urgently transported back to China, with a round-trip flight distance of 34,000 kilometers.

　　On November 27th, due to the eruption of Agung volcano, the Indonesian Bali Wulalai International Airport was temporarily closed, leaving 17,000 China tourists stranded there. From 14: 28 on November 29th to 14: 00 on December 4th, the Civil Aviation Administration, the Ministry of Foreign Affairs, the Consulate General of China in Denpasar and other relevant departments coordinated the flights of China Eastern Airlines, Xiamen Airlines and China Southern Airlines to Bali, "coming empty, leaving full" to help China tourists return home.

　　Expert comment: In 2017, Wolf Warriors 2 was popular all over the country, and the scene of Jason Wu holding the national flag through the war zone made countless people excited. In fact, real scenes are more burning than movies. When the storms and waves of nature raze everything to the ground and individuals become so small, the welcome of the motherland is precious and exciting. As the words in the passport at the end of Wolf Warriors 2: "People’s Republic of China (PRC) citizens: When you are in danger overseas, don’t give up! Please remember that behind you, there is a strong motherland! "

　　Keyword 7: Tonnage UAV

　　The world’s first tonnage cargo drone was born. Online shopping or airdrop will come home in the future.

　　On October 26th, AT200, a large cargo drone, completed its first flight at Neifu Airport in Pucheng, Shaanxi Province, and the whole flight lasted for 26 minutes. This marks the birth of the world’s first tonnage cargo drone, and online shopping may be airdropped home in the future.

　　With a total length of 11.84 meters, a wingspan of 12.8 meters, a height of 4.04 meters and a maximum takeoff weight of 3.4 tons, AT200 is the "big guy" in the field of civil UAVs at home and abroad. Its warehouse has a volume of 10 cubic meters and a payload of 1.5 tons.

　　According to the R&D team of the Institute of Engineering Thermophysics of Chinese Academy of Sciences, AT200 is equipped with advanced flight control system and command system, which completely gets rid of the dependence on pilots and realizes the "one-button autonomous take-off and landing" of aircraft in the accusation center. The UAV flight controller only needs to monitor the on-board state, and can change the flight state by simple operation when necessary, which greatly reduces the freight cost and operation difficulty.

　　Expert comment: The AT200′ s short-distance take-off and landing capability has solved the take-off and landing problem of the island’s large-tonnage UAV. By adding the set-point delivery capability later, the aircraft that further improves the delivery accuracy will have broad application prospects in Southeast Asian countries along the Belt and Road Initiative. The shortage of captains has always been one of the main factors restricting the development of China’s civil aviation industry. In order to attract mature captains, some companies even offered a "transfer fee" of 5 million. The first flight of a large cargo UAV will open up new opportunities for the development of China’s civil aviation, especially air cargo.

　　Keyword 8: High-speed rail "forced stop" flight

　　"Air-ground competition" fiery high-speed rail frequently "forced to stop" direct flights

　　On the morning of December 6th, at Chengdu East Railway Station, a CRH3A bullet train stopped at the platform, and a touch of local gold eye shadow was particularly eye-catching. It was the first train D4252 of Xicheng High-speed Railway.

　　In recent years, the competition between high-speed rail and aviation has been fierce, and many routes within 800 kilometers have seen a double drop in attendance and fares, and even been forced to stop. In 2017, "open space competition" was staged again.

　　On April 16th, Zhengzhou-Beijing Sanyi Station went directly to the high-speed railway, and the attendance rate of passengers on the first day reached 80%. The high-speed rail passenger flow between the two places is hot. In contrast, the civil aviation market has shrunk to only one flight.

　　At the end of October, many passengers in Chengdu and Xi ‘an found that the previous direct flights between the two places were basically cancelled. It originally took only one and a half hours, and it took at least six hours after the transfer. Many people in the civil aviation system explained that the Xicheng high-speed railway was opened in October, and the airlines canceled all the direct flights when they made the winter and spring flight plans. Only after the cancellation did they know that the high-speed railway would be delayed.

　　Expert comment: In 2010, China Southern Airlines implemented the "Express Line" strategy to compete with the high-speed rail, which ended in failure. In the future, civil aviation and high-speed rail should compete in a wrong position and win-win cooperation. High-speed rail focuses on the short-and medium-distance passenger transport market, while civil aviation mainly invests in the operation of medium-and long-distance international cross-sea routes. The two sides can also carry out in-depth intermodal cooperation to jointly provide passengers with comfortable and fast travel services.

　　(Comment expert: Lin Zhijie, strategic planning manager of Xiamen Aviation Planning and Finance Department, responsible for civil aviation industry research, company strategic planning and business analysis. Columnist of Civil Aviation Resource Network. )

[F-450 XLT Regular Cab, pulling small construction machinery through gooseneck trailer]

[Super Duty series optional PTO, did you think of Unimok? 】

[Super Duty car changed into dump truck, wrecker and engineering truck]

[Heavy truck F-650 series, dragging the front page upright, quite Optimus Prime’s aura]

[F-750 Super Cab, it is impossible to step into the cab]

　　Six giant pandas who lost their "homes" in the Wenchuan earthquake are now living in a temporary board room for giant pandas next to the Wolong town government, and eight staff members take care of their daily lives.

　　The "5.12" Wenchuan earthquake caused serious damage to the China Giant Panda Protection Research Center, and more than 60 giant pandas lost their "homes" from then on. Most of the giant pandas were moved to Bifengxia Panda Breeding Base in Ya ‘an, Sichuan, and some of them were fostered in zoos in other provinces. Xinhua News Agency reporter Xing Guangli photo

　　On April 17, three giant pandas "dined" in the temporary board house resettlement area for giant pandas next to the Wolong town government. Xinhua News Agency reporter Xing Guangli photo

　　At present, the staff of Hangzhou Taixin Industrial Co., Ltd. is stepping up the construction of 8 sets of "Panda Villa" and 1 set of "Panda Kindergarten" for captive giant pandas at Bifengxia Base of China Conservation Giant Panda Research Center in Ya ‘an, Sichuan, in order to welcome the 13 giant pandas that will be transferred from China Conservation Giant Panda Research Center in Wolong, Sichuan in mid-July. According to reports, this kind of house built for giant pandas costs 1650 yuan per square meter, which has the characteristics of heat preservation, energy saving and long-term use, and is suitable for giant pandas to be kept in captivity. Xinhua News Agency reporter Nie Jianjiang photo

Editor: Teng Xue

　　Diaphragm materials are common in our life, such as explosion-proof film on automobile glass and protective film on mobile phone panel. What many people don’t know is that there is also a diaphragm in our mobile phone battery, which is used to prevent the battery from short circuit and transmit ions at the same time. After years of research, researchers of China University of Science and Technology designed a new type of ion conducting membrane. This ionic membrane is expected to be widely used in energy conversion, large-scale energy storage and distributed power generation. The research results were published in the international academic journal Nature on April 26th, Beijing time.

△ Researchers show the new domestic ionic membrane.

　　Ion-exchange membrane is the key component of electrochemical devices or equipment such as flow battery and fuel cell. It should not only prevent short circuit, but also ensure the efficient passage of ions during charging and discharging, and reduce the loss. However, traditional ion-exchange membrane is prone to swelling and deformation after absorbing water, and its structure is loose, especially after being used for a long time, which may lead to structural aging and performance degradation. This kind of new ionic membrane developed by researchers of China University of Science and Technology has solved the problem that ions can’t have both conductivity and selectivity in materials, and the ion transmission is faster, and the near frictionless conduction is realized in the membrane. The charging and discharging current density of the flow battery assembled with this membrane can reach 500 mA per square centimeter, which is stronger than the traditional ionic membrane, less prone to aging, and will not swell due to water absorption.

△ China University of Science and Technology domestic ionic membrane researchers

　　It is understood that for many years, efficient storage and utilization of new energy sources such as solar energy and wind energy has been an important research and development topic for Chinese researchers. The advent of this domestic ionic membrane will break the technical monopoly of similar products abroad for many years, greatly improve the efficiency of energy storage equipment such as flow batteries, and is expected to be widely used in the energy storage field of new energy sources such as solar energy and wind energy in China. At present, researchers are stepping up the mass production of this type of ionic membrane.

　　Professor Xu Tongwen of China University of Science and Technology introduced that we can combine this new flow battery energy storage technology with our power grid for household electricity and industrial production. We can also store the electricity generated by solar energy and solar panels and build a power station to charge cars. In this way, we can save energy and protect the environment, and promote our country to achieve the goal of "double carbon". (CCTV reporter Chu Erjia Wang Shuai)

　　[Pacific Auto Network New Car Channel]The new sports version has been officially launched, but only the price of the 3.0T model has been announced before. A few days ago, it was announced that its 5.0L V8 SC Fengshang Chuangshi version of Dynamic was officially launched at a price of 1.98 million yuan.

　　A new generation of Land Rover has launched four models in China, and the differences in configuration are seen respectively. The SE model is an entry-level, equipped with an electric tailgate and an all-terrain feedback adaptive system. The HSE model with a higher level is matched with 20 inches, with ventilation and heating function in the rear seat, reversing camera at the rear and 14-way electrically adjustable front seat.

　　This 5.0L V8 SC Fengshang Chuangshi Edition has already announced its detailed configuration, and the biggest highlight of this car is that it is equipped with a 5.0T engine, which is 380kW(510PS) and 625Nm, which is matched with an 8-speed automatic manual transmission.

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