The unmanned submersible "Faxian" is elevated from the sea aboard Chinese research vessel "Kexue" during an operation to detect a cold seep in the South China Sea, July 24, 2017. (Xinhua/Zhang Xudong)
China's unmanned submersible to detect cold seep in South China Sea
Source: Xinhua| 2017-07-24 22:39:37|Editor: Liangyu
KEY WORDS: Kexue
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