China adds new vessel to ocean scientific research

Staff members adjust and test equipment of the new ocean scientific research ship Haiyang Dizhi-7 in Weihai City, east China's Shandon Province, Dec. 19, 2020. Haiyang Dizhi-7, delivered on Saturday in Weihai, is added to the research vessels of China Geological Survey. (Photo by Zhang Jingang/Guangming Picture)