Photo taken on Aug. 21, 2022 shows an exhibition hall of the 2022 Smart China Expo in southwest China's Chongqing. The 2022 Smart China Expo is set to be held from August 22 to 24 both online and offline.Photo:Xinhua

A staff member plays the Chinese board game Go (Weiqi) with a robot at the venue of the 2022 Smart China Expo in southwest China's Chongqing, Aug. 21, 2022.Photo:Xinhua

A smart robot makes coffee at the venue of the 2022 Smart China Expo in southwest China's Chongqing, Aug. 21, 2022.Photo:Xinhua

A staff member demonstrates an E-sports simulator at the venue of the 2022 Smart China Expo in southwest China's Chongqing, Aug. 21, 2022.Photo:Xinhua

A staff member demonstrates an explosion-proof robot for inspection in chemical facilities at the venue of the 2022 Smart China Expo in southwest China's Chongqing, Aug. 21, 2022.Photo:Xinhua

Photo taken on Aug. 21, 2022 shows a robot for pipeline inspection at the venue of the 2022 Smart China Expo in southwest China's Chongqing.Photo:Xinhua