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In pics: Jinhuagong National Mine Park in north China's Shanxi

CHINA-SHANXI-DATONG-MINE PARK (CN)

Students pose for photos on their visit to a coal museum, which is located underground at the Jinhuagong National Mine Park in Datong City, north China's Shanxi Province, May 16, 2017. (Xinhua/Cao Yang)

[ Editor: meng ]