Photo taken on May 6, 2017 by Jiaolong, China's manned submersible, shows escarpment landform in the South China Sea. Jiaolong explored submarine turbidity currents in the South China Sea on Saturday. (Photo/Xinhua)
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Photo taken on May 6, 2017 by Jiaolong, China's manned submersible, shows escarpment landform in the South China Sea. Jiaolong explored submarine turbidity currents in the South China Sea on Saturday. (Photo/Xinhua)
