Visitors look at a robot which can water flowers, deliver beverage and play football during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Ou Dongqu/Xinhua]

A visitor tries a green-driving simulation device during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Ou Dongqu/Xinhua]

A staff member introduces data visualization of smart business areas during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Ou Dongqu/Xinhua]

Visitors learn about an unmanned express delivery vehicle during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Tao Liang/Xinhua]

Visitors look at a robotic dog during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Jin Liwang/Xinhua]

Visitors learn about a smart home system during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Tao Liang/Xinhua]

A robot performs a remote ultrasound scan during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Jin Liwang/Xinhua]

A visitor walks past a billboard displaying brands of exhibitors at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Jin Liwang/Xinhua]

Data-related publications are displayed at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Ou Dongqu/Xinhua]

Photo taken on May 26, 2021 shows an exterior view of the venue of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Ou Dongqu/Xinhua]

A visitor watches a promotion video at the opening ceremony of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Ou Dongqu/Xinhua]

Photo taken on May 26, 2021 shows an exterior view of the venue of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Yang Wenbin/Xinhua]

A visitor walks past an outdoor installation at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Jin Liwang/Xinhua]

Photo taken on May 26, 2021 shows an exterior view of the venue of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Yang Wenbin/Xinhua]

Photo taken on May 26, 2021 shows a scene of the opening ceremony of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Ou Dongqu/Xinhua]

A woman visits the exhibition area of the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Yang Wenbin/Xinhua]

A woman poses for photos at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Yang Wenbin/Xinhua]

Visitors watch exhibits on 5G intelligence at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Yang Wenbin/Xinhua]

Visitors enter the venue of the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The China International Big Data Industry Expo 2021 opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in the relevant area. Under the theme "Embrace digital intelligence, Deliver new development," this year's expo is scheduled both online and offline. The expo will witness six high-level dialogues to discuss topics such as data security, digital services, and the digitalization of industries. [Photo by Ou Dongqu/Xinhua]

A visitor (R) tries MR-powered holographic classroom during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Yang Wenbin/Xinhua]

A visitor tries a green-driving simulation device during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Tao Liang/Xinhua]

People visit the "smart grid" pavilion at the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Yang Wenbin/Xinhua]

A staff member tracks data of a kiwi fruit via a mobile phone during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Ou Dongqu/Xinhua]

An AI-powered robot brews coffee during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Yang Wenbin/Xinhua]

Visitors learn about a smart city governance system during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Tao Liang/Xinhua]

A staff member interacts with an AI-powered robotic cat during the China International Big Data Industry Expo 2021 in Guiyang, southwest China's Guizhou Province, May 26, 2021. The expo opened here on Wednesday, showcasing cutting-edge scientific and technological innovations and achievements in relevant areas. [Photo by Yang Wenbin/Xinhua]