Staff members work at an exhibition booth during a media preview of the 2022 World 5G Convention in Harbin, capital of northeast China's Heilongjiang Province, Aug. 9, 2022. The 2022 World 5G Convention will be held here from August 10 to 12.(Photo: Xinhua)
A staff member tests devices at an exhibition booth during a media preview of the 2022 World 5G Convention in Harbin, capital of northeast China's Heilongjiang Province, Aug. 9, 2022. The 2022 World 5G Convention will be held here from August 10 to 12.(Photo: Xinhua)
Staff members test devices at an exhibition booth during a media preview of the 2022 World 5G Convention in Harbin, capital of northeast China's Heilongjiang Province, Aug. 9, 2022. The 2022 World 5G Convention will be held here from August 10 to 12.(Photo: Xinhua)
Staff members work at an exhibition booth during a media preview of the 2022 World 5G Convention in Harbin, capital of northeast China's Heilongjiang Province, Aug. 9, 2022. The 2022 World 5G Convention will be held here from August 10 to 12.(Photo: Xinhua)