The ship left Zhoushan, east China's Zhejiang province, carrying more than 200 personnel for a 250-day trip that will sail over 25,000 nautical miles, Xinhua news agency reported.
Scientists plan to conduct research including surveying polymetallic sulphide deposits, sampling biological gene resources, air-sea flux observations and studying ocean structures, according to chief scientist Tao Chunhui.
"A major feature of this voyage is that we will step up environmental monitoring in our scientific expedition and place more attention on the health of the ocean," said Tao.
Advanced deep-sea exploration equipment such as the unmanned submersible Qianlong 2 and an underwater glider will be used during the expedition, he said.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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