Smart China Expo 2021 opens in Chongqing

A staff member (L) introduces 5G technology application to a visitor at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021 opened in Chongqing on Monday, with more than 600 enterprises participating in the exhibition online and offline. (Xinhua/Tang Yi)

Visitors experience MR techolologies at the Smart China Expo in Chongqing, southwest China, Aug. 23, 2021. The Smart China Expo 2021 opened in Chongqing on Monday, with more than 600 enterprises participating in the exhibition online and offline. (Xinhua/Tang Yi)