Scientist Deng Xiguang introduces samples collected during a marine scientific research after return in Dongguan, south China's Guangdong Province, Jan. 30, 2018. Chinese ocean scientific research vessel Haiyang-6 returned to Dongguan Tuesday after a 219-day deep-sea geological survey and marine research. (Xinhua/Wu Lu)
Chinese research vessel completes 2017 deep sea exploration
Source: Xinhua| 2018-01-30 17:38:45|Editor: Liangyu
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