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The Chinese research vessel Dayang Yihao (Ocean No.1) leaves Qingdao port of east China's Shandong Province Dec. 10, 2018, taking researchers on a 230-day scientific ocean expedition. (Xinhua/Li Ziheng)
The Chinese research vessel Dayang Yihao (Ocean No.1) leaves Qingdao port of east China's Shandong Province Dec. 10, 2018, taking researchers on a 230-day scientific ocean expedition. (Xinhua/Li Ziheng)