Jiaolong, China's manned submersible, is about to dive into South China Sea, May 5, 2017. Jiaolong discovered a collection of polymetallic nodules in Puyuan Seamount in the South China Sea on Friday. (Xinhua/Liu Shiping)
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Jiaolong, China's manned submersible, is about to dive into South China Sea, May 5, 2017. Jiaolong discovered a collection of polymetallic nodules in Puyuan Seamount in the South China Sea on Friday. (Xinhua/Liu Shiping)
