Smart China Expo kicks off in Chongqing

A narrator introduces new technologies applied in Chongqing airport during the Smart China Expo in Chongqing, southwest China, Aug. 26, 2019. The 2019 Smart China Expo kicked off Monday at the Chongqing International Expo Center. High techs including 5G live broadcast and 5G remote emergency medical aid are among the expo's highlights. (Xinhua/Liu Chan)