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A staff member demonstrates the "5G+AR" technology at the booth of Chinese tech company Huawei at Mobile World Congress 2021 (MWC21) in Barcelona, Spain, June 28, 2021. One of the star technologies on show at the MWC21 Barcelona this week was 5G, the fifth-generation technology standard for broadband cellular networks. Companies present at the major international trade fair that was called off last year due to the pandemic brought along an array of 5G-based technology solutions to the event that took place between June 28 and July 1. (Xinhua/Zhang Cheng)
