Photo taken on July 16, 2014 shows Cobalt-rich crusts collected by Jiaolong, China's first manned deep-sea submersible, in the northwest Pacific Ocean, July 16, 2014. The submersible has launched a voyage in the northwest Pacific Ocean, during which it will research cobalt-rich crusts and life forms inhabiting the bottom of the sea. (Xinhua/Luo Sha) |
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