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Chinese Vice Premier Liu Yandong addresses the opening ceremony of the World Robot Conference 2017 in Beijing, capital of China, Aug. 23, 2017. (Xinhua/Zhang Ling)

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Chinese Vice Premier Liu Yandong visits the World Robot Conference 2017 after its opening ceremony in Beijing, capital of China, Aug. 23, 2017. (Xinhua/Zhang Ling)

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