【彩神APP通关注码安卓app_彩神APP通关注码安卓app官网】Research vessel returns to Qingdao from 31

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Staff members tether the research vessel Kexue at its home port in the Qingdao West Coast New Area in Qingdao, east China's Shandong Province, Nov. 5, 2018. The research vessel returned to Qingdao on Monday from a 31-day scientific expedition to the West Pacific. (Xinhua/Zhang Jingang)

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