
A journalist sits in an electric vertical take-off-and-landing (eVTOL) aircraft at the venue of the World Smart Industry Expo 2025 in southwest China's Chongqing, Sept. 4, 2025. The expo is scheduled for Sept. 5 to 8 in Chongqing to present cutting-edge achievements of the smart industry through professional exhibitions. (Photo: Xinhua)

A guest interacts with a robot dog at the venue of the World Smart Industry Expo 2025 in southwest China's Chongqing, Sept. 4, 2025. The expo is scheduled for Sept. 5 to 8 in Chongqing to present cutting-edge achievements of the smart industry through professional exhibitions. (Photo: Xinhua)

This photo shows the venue of the World Smart Industry Expo 2025 in southwest China's Chongqing, Sept. 4, 2025. The expo is scheduled for Sept. 5 to 8 in Chongqing to present cutting-edge achievements of the smart industry through professional exhibitions. (Photo: Xinhua)

Journalists and guests watch a robot boxing game at the booth of Unitree at the venue of the World Smart Industry Expo 2025 in southwest China's Chongqing, Sept. 4, 2025. The expo is scheduled for Sept. 5 to 8 in Chongqing to present cutting-edge achievements of the smart industry through professional exhibitions. (Photo: Xinhua)