a三级黄色片,久久亚洲精品国产一区,天天天操操操,日韩啪啪小视频,免费观看黄视频,久久久久国产成人免费精品免费,特级一级片

China's unmanned submersible "Hailong III" completes deep sea test

Source: Xinhua| 2018-03-25 20:18:49|Editor: Mengjie
Video PlayerClose

CHINA-UNMANNED SUBMERSIBLE-HAILONG III-DIVE(CN)

Unmanned submersible "Hailong III", on board the Chinese research vessel Dayang Yihao (Ocean No. 1), is examined by staff members of the scientific ocean expedition before being put into the sea for a deep sea testing on March 24, 2018. The submersible completed a 1,690-meter-deep sea testing in West Pacific Ocean, March 25, 2018. (Xinhua/Chen Hao)

   Prev 1 2 3 4 5 Next  

KEY WORDS: submersible
EXPLORE XINHUANET
010020070750000000000000011100001370644411