
A staff member demonstrates an optical motion capture system at the 24th China Hi-Tech Fair (CHTF) in Shenzhen, south China's Guangdong Province, Nov. 15, 2022. The 24th China Hi-Tech Fair (CHTF) kicked off on Tuesday in Shenzhen, south China's Guangdong Province, attracting over 5,600 exhibitors from 41 countries and regions. Photo: Xinhua

A robot makes coffee at the 24th China Hi-Tech Fair (CHTF) in Shenzhen, south China's Guangdong Province, Nov. 15, 2022. The 24th China Hi-Tech Fair (CHTF) kicked off on Tuesday in Shenzhen, south China's Guangdong Province, attracting over 5,600 exhibitors from 41 countries and regions. Photo: Xinhua

People visit the 24th China Hi-Tech Fair (CHTF) in Shenzhen, south China's Guangdong Province, Nov. 15, 2022. The 24th China Hi-Tech Fair (CHTF) kicked off on Tuesday in Shenzhen, south China's Guangdong Province, attracting over 5,600 exhibitors from 41 countries and regions. Photo: Xinhua

This photo taken on Nov. 15, 2022 shows a robotic dog at the 24th China Hi-Tech Fair (CHTF) in Shenzhen, south China's Guangdong Province. The 24th China Hi-Tech Fair (CHTF) kicked off on Tuesday in Shenzhen, south China's Guangdong Province, attracting over 5,600 exhibitors from 41 countries and regions. Photo: Xinhua

This photo taken on Nov. 15, 2022 shows an AI-generated portrait of a visitor at a booth of the 24th China Hi-Tech Fair (CHTF) in Shenzhen, south China's Guangdong Province. The 24th China Hi-Tech Fair (CHTF) kicked off on Tuesday in Shenzhen, south China's Guangdong Province, attracting over 5,600 exhibitors from 41 countries and regions. Photo: Xinhua