People visit the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Zhang Tao)

A boy tries smart glasses that combine AI and VR technologies at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 18, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Wang Song)

People try a simulated cockpit of a passenger aircraft at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Xie Jianfei)

People visit the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Zhang Tao)

People visit the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Zhang Tao)

Children play with a robot at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 18, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Wang Jianwei)

Children play with a humanoid robot at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 18, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Wang Song)

A man operates a medical robot to perform simulated surgeries at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Xie Jianfei)

People learn about drone products at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 18, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Xie Jianfei)

People take photos of a humanoid robot at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 18, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Wang Jianwei)

A mining robot is pictured at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Zhang Tao)

A medical robot performs simulated surgeries at the 34th Harbin International Economic and Trade Fair in Harbin, capital of northeast China's Heilongjiang Province, May 19, 2025. The fair showcased cutting-edge technologies such as autonomous driving, commercial satellites and humanoid robots from over 100 tech firms. (Xinhua/Zhang Tao)