Jiaolong, China's manned submersible, is about to dive into the South China Sea, May 6, 2017. Jiaolong explored submarine turbidity currents in the South China Sea on Saturday. Three crew members in the submersible conducted surveys and sampling and measured environmental parameters. They brought back samples of sediment and seawater near the seabed as well as high-definition photos and video footage. (Photo/Xinhua)
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