成人毛片高清视频观看,成人黄色在线免费观看,av天堂最新手机网址无码窝,一级毛片视频

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)

Engineer Fan Jinjin with China Railway Zhengzhou Group Co., Ltd operates a robot to scan and check 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