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Yao Fuchen, a mechanic of China Railway Shenyang Group Co., Ltd., checks on the train in shenyang, northeast China's Liaoning Province, Jan. 22, 2019. (Xinhua/Pan Yulong)
Yao Fuchen, a mechanic of China Railway Shenyang Group Co., Ltd., checks on the train in shenyang, northeast China's Liaoning Province, Jan. 22, 2019. (Xinhua/Pan Yulong)