People visit the World Intelligence Expo 2024 in north China's Tianjin, June 20, 2024. The World Intelligence Expo 2024 opened on Thursday in Tianjin. With the theme of "Intelligence: Extensive Development Space, Sustainable Growth Driver," the expo is co-hosted by the Tianjin municipal government and Chongqing municipal government.(Photo: Xinhua)

People visit the booth of China Railway Rolling Stock Corporation (CRRC) at the World Intelligence Expo 2024 in north China's Tianjin, June 20, 2024. The World Intelligence Expo 2024 opened on Thursday in Tianjin. With the theme of "Intelligence: Extensive Development Space, Sustainable Growth Driver," the expo is co-hosted by the Tianjin municipal government and Chongqing municipal government.(Photo: Xinhua)

A visitor learns about an aircraft at the booth of Xpeng Aeroht at the World Intelligence Expo 2024 in north China's Tianjin, June 20, 2024. The World Intelligence Expo 2024 opened on Thursday in Tianjin. With the theme of "Intelligence: Extensive Development Space, Sustainable Growth Driver," the expo is co-hosted by the Tianjin municipal government and Chongqing municipal government.(Photo: Xinhua)

A visitor interacts with a bio-robot at the World Intelligence Expo 2024 in north China's Tianjin, June 20, 2024. The World Intelligence Expo 2024 opened on Thursday in Tianjin. With the theme of "Intelligence: Extensive Development Space, Sustainable Growth Driver," the expo is co-hosted by the Tianjin municipal government and Chongqing municipal government.(Photo: Xinhua)