Photo taken on Aug. 23, 2021 shows the opening ceremony of the Smart China Expo in Chongqing, southwest China. The Smart China Expo 2021 opened in Chongqing on Monday, with more than 600 enterprises participating in the exhibition online and offline. (Xinhua/Liu Chan)
A staff member (R) displays a robot for fire fighting and detection 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 VR devices 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)
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)
Visitors view a 3D display product 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/Huang Wei)
A visitor experiences in an intelligent health service hut 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/Wang Quanchao)
Visitors tour the China Railway exhibition booth 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/Wang Quanchao)
