一级做a免费观看大全视频,中文字幕乱码无限2019,日日麻批40分钟免费视频播放,精品专区性色av,国产性夜夜春夜夜爽,岛国三级片免费看久久,久久五月天和激情网

Mechanical engineers offer maintenance service to airplanes to ensure flight safety

Source: Xinhua| 2020-01-22 21:39:25|Editor: mingmei
Video PlayerClose

CHINA-URUMQI-AIRPLANE-MECHANICAL ENGINEER (CN)

Mechanical engineers check the hydraulic pressure system of an airplane at Urumqi Diwopu International Airport in Urumqi, northwest China's Xinjiang Uygur Autonomous Region, Jan. 21, 2020. Staff members of China Southern Airlines have fully prepared to offer maintenance service to airplanes, an effort to ensure flight safety during the Spring Festival travel rush. (Xinhua/Ding Lei)

   Prev 1 2 3 4 5 6 7 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001387272111


一级做a免费观看大全视频,中文字幕乱码无限2019,日日麻批40分钟免费视频播放,精品专区性色av,国产性夜夜春夜夜爽,岛国三级片免费看久久,久久五月天和激情网 国产视频观看91 国产00在线视频国产 国产综合色视频久久久 久久成人国产精品一区二区 高清无码免费黄色网站