中文幕亚洲精品乱码色偷偷亚_国产午夜性爽视频男人的天堂_欧美高潮流白浆喷水在线观看_亚洲夜色久一久二亚洲琪琪卡一卡二_暖暖亚洲一区二区三区AV无码

Robots employed in China's railway system during Spring Festival travel rush

Source: Xinhua| 2019-02-21 07:53:23|Editor: zh
Video PlayerClose

CHINA-HENAN-TRAVEL RUSH-BULLET TRAIN-MAINTENANCE-ROBOT(CN)

A robot scans and checks the bottom of a bullet train in Zhengzhou, central China's Henan Province, on Feb. 20, 2019. A growing number of robots are employed in China's railway system to improve efficiency and ensure safety, as railway trips are expected to hit 413 million in total during this year's Spring Festival travel rush, China's largest seasonal migration of people. (Xinhua/Li An)

   Prev 1 2 3 4 5 6 7 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001378381251