World's largest industrial show opens in Hanover

Swedish Prime Minister Stefan Lofven (R, Rear) shakes hands with German Chancellor Angela Merkel during the opening ceremony of 2019 Hanover Fair in Hanover, Germany, on March 31, 2019. The Hanover Fair, the world's largest industrial show, opened here on Sunday evening with the highlights of 5G network and artificial intelligence (AI). (Xinhua/Shan Yuqi)