黄色网址免费看_精品一区二区免费视频视频_欧美69精品久久久久久不卡_污网站在线看_欧美阿v高清资源在线_男人日女人视频网站

China Focus: Exhibition tracks 70 years of innovative spirit

Source: Xinhua| 2019-10-29 21:03:39|Editor: huaxia
Video PlayerClose

by Xinhua writers Che Yunlong, Quan Xiaoshu

BEIJING, Oct. 29 (Xinhua) -- Ms. Mao's mind started wandering into the past when she saw a green-clad Jiefang truck displayed in the vast Beijing exhibition hall.

"When I graduated from college at the age of 21, I took a Jiefang truck from Nanchang (capital of east China's Jiangxi Province), to other cities in Jiangxi for internship," recalled Mao, who's in her 70s.

The only alternative transport at the time was walking, but the truck still took two days to travel about 100 km across the rugged mountain roads.

Produced from 1956, Jiefang trucks were the first domestically-made motor vehicles after the People's Republic of China was founded in 1949.

The exhibition in Beijing, marking the 70th founding anniversary of New China, showcases many of China's scientific and technological breakthroughs.

ON THE MOVE

Jiang Zhen, 38, has also seen spectacular advances in transport.

"When I went to college 20 years ago, I could only take a bus to Beijing from my hometown Dalian (northeast China's Liaoning Province), and it took a whole night. But with the high-speed train, the journey is only four and a half hours," said Jiang.

China's rapid development of the domestic transport network now has railways and expressways extending to mountains, deserts and plateaus.

The Qinghai-Tibet Railway, the world's highest and longest plateau railway, was put into operation in 2006. During the construction, Chinese researchers and engineers overcame the challenges of permafrost, lack of oxygen and fragile ecology, achieving many technological breakthroughs.

At the end of 2018, China's railway network totaled more than 131,000 km, and high-speed rail exceeded 29,000 km.

Chinese researchers are still exploring transport possibilities for the future.

This May, the high-speed maglev test train with a design speed of 600 km per hour rolled off the assembly line in Qingdao, east China's Shandong Province.

In May 2016, China's first medium-and-low speed maglev line with a design speed of 100 km per hour, fully supported by its own technology, started operation in Changsha, capital of central China's Hunan Province.

By the end of this August, the Changsha maglev service had traveled a total of 3.07 million km and carried more than 10 million passengers.

Compared with traditional subway trains, the maglev is quieter, cheaper and has more flexibility in route planning. Researchers are confident it could be an effective option for urban rail transit in the future.

DEEPER INTO SPACE

Jiang took her 10-year-old son and her parents to the exhibition. Her son, long accustomed to high-speed rail, showed more interest in the spacecraft.

A series of prototype models -- "Dongfanghong-1," "Fengyun-1," "Shenzhou-1" and "Chang'e-1" -- recorded the constant development of China's aerospace industry.

In 1970, the Dongfanghong-1 satellite was launched into orbit on the Long March-1 carrier rocket, making China the fifth country able to send a satellite into space independently.

In front of the re-entry capsule of Shenzhou-1, volunteer guide Yang Wantao, an energy and power engineering major at Tsinghua University, was explaining the operation mechanism of the capsule.

China's first unmanned experimental spacecraft, Shenzhou-1 was launched in 1999.

"Visitors show great interest in its name and role. I tell them that it took seeds of green pepper, watermelon and tomato and other crops into space, and verified the key technology and system design of the spacecraft," Yang said.

In 2003, Shenzhou-5, China's first manned spacecraft took Yang Liwei into space.

The name of Yang Liwei was deeply imprinted on the mind of Jiang's son. Obsessed with aerospace, he hopes to witness in person more of China's space explorations.

In the past five decades, China has launched more than 200 spacecraft and made innovations in both unmanned and manned flight, as well as in-capsule experiments and spacewalking.

"The exhibition is of great significance, especially for us who were born after 1990. It teaches us about China's development that we couldn't personally experience," said Yang Wantao.

LIVING LONGER, SMARTER

In front of the "1965" exhibition hall, a father was explaining to his child a complex but ordered molecular model of crystalline bovine insulin, which was first synthesized by Chinese scientists in 1965.

As the world's first biologically active, synthesized crystalline protein, it represented a great stride forward in the quest to understand life and unveil its secrets, and ushered in the era of synthetic proteins.

Medical breakthroughs, like the separation of chlamydia trachomatis, the discovery of artemisinin, as well as the cure of acute promyelocytic leukemia, were also on display with models, videos and augmented reality technology.

Progress in medical science and the health insurance system have greatly improved China's healthcare, with average life expectancy rising from 35 in 1949 to 77 in 2018.

The development of computer technology and artificial intelligence is leading to smarter living too.

In a hall featuring a household of the future, the TV, air conditioner, refrigerator, induction cooker and other electric appliances were all connected to and controlled by an intelligent central system. The appliance functions were projected onto the walls.

Exhibition worker Xie Xin showed visitors the functions of a smart refrigerator: voice control, touch screen and automatic display of the expiration dates of food items.

Other innovations developed independently in China included the 3D human body health tracker, a robot handling daily chores, a smart desk and a driverless bus.

"I have been retired for over 20 years," said Ms. Mao. "Having witnessed the rapid development of China's science and technology, I've experienced an increasingly better life."

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001385129981
主站蜘蛛池模板: 日本欧美在线观看视频|国产免费观看黄=aV片|男女猛烈无遮挡免费视频|久久久久久18|四虎最新紧急更新地址|久久丝袜 | 国产成人毛片在线视频|视频在线播放|91福利在线看|国产亚洲无|天堂一区二区三区在线|日韩精品一卡 | 亚洲黄色成人=av|免费的国产视频|成人免费视频国产免费麻豆|67194久久|激情=av网站|国产精品一区二区=aV蜜芽 | 男人视频在线观看|青青青草国产|国产成=a人亚洲精v品无码性色|91深夜|国产chinese精品露脸|日日日日做夜夜夜夜做无码 | 蜜芽=aV无码精品国产午夜|日本高清一二三区视频在线|十八禁裸体WWW网站免费观看|浪潮=av色综合久久加勒比|99精品国产在热久久无毒|精品国产免费人成在线观看 | c=aopom成人免费公开视频|中文字幕欧美人妻精品一区|91九幺丨成人|日韩久久国产|三年片大全免费观看|久草在在线 | 欧美=a黄|黄色一级片毛片|无码国产乱人伦偷精品视频|黄网免费视频|国产精品乱码久久久久久|性少妇tubevⅰdeos高清 | 99免费在线播放99久久免费|伊人久久在|在线观看91精品视频|国产精品国产三级国产=a|毛片视频大全|亚洲黄色片免费看 激情综合欧美|日本一区欧美|97色伦欧美一区二区日韩|国产东北女人做受=av|又色又爽又黄又粗暴的小说|中文字幕无码日韩欧毛 | 日韩高清黄色片|夜夜爽一区二区三区|老司机福利在线观看|狠狠色噜噜狼狼狼色综合久|精品免费观看视频|小早川怜子一区二区的演员表 | 日本一二三区在线视频|91久久久久久久久|丁香五月天婷婷五月天男人天堂|人人澡人摸人人添|#NAME?|欧美群p视频 | 啦啦啦免费高清在线观看|黄色一级特级片|亚洲人成网站在线播放2019|黄色片在线观看视频|一区二区三区毛=a片特级|四虎最新网 | 亚洲女人天堂在线|四虎福利影院|日韩视频在线观看视频|欧美日韩成人一区|黑人异族巨大巨大巨粗|超碰在线c=ao | 五月婷婷在线观看视频|国产熟女精品视频国语|97亚洲欧美国产网曝97|91中文精品|高潮迭起=av乳颜射后入|国产91精品久久久 | 久久99香蕉|中国XXX农村性视频|亚洲=aV日韩=aV男人的天堂在线|国产v亚洲v天堂=a|亚洲|这里只有精品在线播放|三年片在线视频中国 | 国内揄拍国内精品人妻浪潮=aV|亚洲人成在线观看一区二区|日韩一区欧美|毛片在线播放=a|亚洲=av最新天堂网址|vr视频高清3d羞羞的铁拳 | 青青久草视频在线|波多野结衣中文字幕一区二区|美女天天操|日韩成人午夜视频|91中文字幕网|99久视频 | 91看片网页版|郎在远方免费观看|色偷偷噜噜噜亚洲男人|国产成人免费在线观看不卡|欧美国产日韩=a在线观看|韩国在线观看=av | pron麻豆|66lu国产在线观看|久久WWW免费人成一看片|亚洲精品乱码久久久久久久久|国语高潮无遮挡无码免费看|成人在线观看18 | 亚洲=aV永久综合在线观看另类|#NAME?|日本亚洲精品成人欧美一区|久草精品在线播放|国产亚洲综合视频|亚洲精彩视频在线 | 97porm国内自拍视频|午夜精品一区二区三区在线播放|久久免费手机视频|人妻体体内射精一区二区|一级片=a|日本亚洲中文在线 | 日韩性生活一级|日韩久久无码一区二区|欧美胖老太一级毛片|欧美精品一区二区精品久久|国产精品日韩在线观看|亚洲=av线=av无码=av岛国片 | 办公室强行丝袜秘书啪啪|国产超薄丝袜足底脚交国产|校花被强糟蹋十八禁免费视频|国产一级纯肉体一级毛片|四虎影院网站|成人免费的视频 | 国产91视频观看|尤物在线精品视频|真人与拘做受免费视频播放|网站一区二区|色屁屁=av|久久一区二区中文字幕 | 亚洲特黄一级大片|91麻豆传媒|国产毛片儿|www..com黄瓜|野花香日本大全免费观看|国产精品宅男擼66M3U8 | 在线观看免费黄网|久久久久久久久久久鸭|91社影院|日本一区免费网站|尹人香蕉久久99天天拍|任我爽橹在线精品视频 | 91经典视频|国产高清在线精品一区二区三区|久久男女视频|最新亚洲=av日韩=av一区二区三区|五月综合激情|国产一=a | 99久久.com|久久大香香蕉国产拍国|俺去俺来也在线WWW色官网|#NAME?|伊人88|亚洲成人v | 99精品视频99|麻豆水蜜桃|极品美女高潮呻吟国产剧情91|午夜一区一品日本|一个色综合久久|国产欧美久久久久久久久 | www.97色.com|免费看日韩|永久黄网站色视频免费看|人妻日韩视频一区二区|亚洲黄视频|wwwwxxxx美国 | 办公室强行丝袜秘书啪啪|国产超薄丝袜足底脚交国产|校花被强糟蹋十八禁免费视频|国产一级纯肉体一级毛片|四虎影院网站|成人免费的视频 | 日韩精品成人=av|午夜精品一区二区三区免费视频|亚洲精品国产综合久久一线|国产三级=aV在在线观看|GV无码免费无禁网站男男|欧美videos另类极品 | 国产同事露脸对白在线视频|91在线91|国产免费看=av大片的网站吃奶|精品国产鲁一鲁一区二区张丽|国产对白久久|5lⅴ精品国产91久久 | 狠狠色狠狠色狠狠五月|在线看片国产|午夜院线|国产一区二区三区免费观看视频|#NAME?|深夜男人你懂的六月婷婷天堂 | 色综合久久蜜芽国产精品|中国国产精品|国产黄色的视频|风间由美无打码在线观看|欧美日韩国产精品久久久久|最新中文字幕免费视频 | 国产一级黄色|美女把尿口扒开让男人桶|sif=angtv国产在线|亚洲一级毛片色视频|一级二级三级=av|特级理论片 | 岛国片在线播放97|欧美成人精品一级在线观看|久久99精品久久久久久久|一区二区三区影院|国产=a久|成人一区久久 | 亚洲wwww|给个毛片网站|欧美日韩伦理在线|日本妈妈黄色片|日韩毛片在线观看|久久精品观看 | 26uuu欧美一级|欧美日韩免费|女人被黑人躁得好爽视频|国产肉体XXXX裸体784大胆|四虎最新网址|欧美色v | 亚洲第一视频专区|亚洲一区二区三区高清不卡|亚洲а∨天堂久久精品|亚洲一区二区三区麻豆|无码福利写真片视频在线播放|久久久人人人 | #NAME?|99爱精品视频|久久久精品一区二区|国产大片一区二区三区|亚洲国产精品综合久久20|免费观看视频的网站 天天超逼|综合一区二区三区|鲍鱼=av在线|农村黄色片|国产96精品|亚洲热线99精品视频 | 毛片免费全部播放无码私人|夜夜爽狠狠澡97欧美精品|日韩中文一区二区三区|欧美孕交videosfree黑人巨大|丰满少妇女人=a毛片视频|国产SUV精品一区二区 |