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Children look at robots at a science and technology museum in Xiayi County, central China's Henan Province, Sept. 16, 2017. A variety of activities of popularization of science were held across the county. (Xinhua/Miao Yucai)
Children look at robots at a science and technology museum in Xiayi County, central China's Henan Province, Sept. 16, 2017. A variety of activities of popularization of science were held across the county. (Xinhua/Miao Yucai)