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A visitor experiences a virtual reality equipment at the 2016 China Mining Congress and Expo in Tianjin, north China, Sept. 23, 2016. The theme of the mining event is "From Novel Concepts, To Innovative Solutions". (Xinhua/Bai Yu)
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A visitor experiences a virtual reality equipment at the 2016 China Mining Congress and Expo in Tianjin, north China, Sept. 23, 2016. The theme of the mining event is "From Novel Concepts, To Innovative Solutions". (Xinhua/Bai Yu)
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