亚洲91视频,国产91网,久久久久久久久久久久久久久国产,亚洲一区二区三区日本久久九,亚洲日本久久,国产精品久久久99,亚洲欧美一区二

US EUROPE AFRICA ASIA 中文
China / China

Manned submersible Jiaolong emerges after trials

(chinadaily.com.cn) Updated: 2011-08-19 14:29

Manned submersible <EM>Jiaolong</EM> emerges after trials

A photo of sea pen taken form 5,000 meters underwater. Jiaolong, the first manned submersible independently designed and assembled in China, returned back to Jiangyin Sunan International port on Aug 18, 2011 in East China's Jiangsu province after 10,000 nautical miles navigation in 49 days. [Photo/Xinhua] 

Highlights
Hot Topics

...