The unmanned submersible "Faxian" is elevated from the sea aboard Chinese research vessel "Kexue" during an operation to detect a cold seep in the South China Sea, July 24, 2017. [Photo by Zhang Xudong/Xinhua]
Scientists work as they prepare for the dive of the unmanned submersible "Faxian" from the Chinese research vessel "Kexue" during an operation to detect a cold seep in the South China Sea, July 24, 2017. [Photo by Zhang Xudong/Xinhua]
The unmanned submersible "Faxian" is elevated from the sea aboard Chinese research vessel "Kexue" during an operation to detect a cold seep in the South China Sea, July 24, 2017. [Photo by Zhang Xudong/Xinhua]
The unmanned submersible "Faxian" leaves Chinese research vessel "Kexue" to dive in the sea during an operation to detect a cold seep in the South China Sea, July 24, 2017. [Photo by Zhang Xudong/Xinhua]
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