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A worker collects the crude salt at Tainan salt field in Lianyungang City, east China's Jiangsu Province, April 7, 2018. (Xinhua/Zhu Huanan)
A worker collects the crude salt at Tainan salt field in Lianyungang City, east China's Jiangsu Province, April 7, 2018. (Xinhua/Zhu Huanan)