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A staff member of the booth of Festo demonstrates a bionic robotic arm during the 2019 Hanover Fair in Hanover, Germany, on April 1, 2019. With a total of 6,500 exhibitors from 75 countries and regions, the Hanover Fair showed the latest development of technologies for industrial use, including 5G network, artificial intelligence, light-weight manufacturing among others. (Xinhua/Shan Yuqi)
