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A staff member assembles commercial service robots at the Haizhou economic development zone in Lianyungang, east China's Jiangsu Province, Dec.4, 2018. (Xinhua/Geng Yuhe)
A staff member assembles commercial service robots at the Haizhou economic development zone in Lianyungang, east China's Jiangsu Province, Dec.4, 2018. (Xinhua/Geng Yuhe)