This photo shows an automatic delivery vehicle on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. Themed "Opening-up leads development, cooperation delivers the future," the 2023 CIFTIS is being held in Beijing from Sept. 2 to 6 and features over 200 varied events, including forums, negotiations, and summits. During the event, cutting-edge technologies have attracted the eyes of visitors. [Xinhua/Ren Chao]

This photo shows a self-driving vehicle on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Zhang Chenlin]

This photo shows an AI-powered orthopaedic surgical robot on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ren Chao]

Children learn about how a surgical robot works during the 2023 China International Fair for Trade in Services (CIFTIS) at China National Convention Center in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ju Huanzong]

This photo shows a self-driving bus on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ren Chao]

This photo shows a digital figure for livestreaming during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ren Chao]

An exhibitor introduces a parking apron for drones during the 2023 China International Fair for Trade in Services (CIFTIS) at China National Convention Center in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Chen Shuo]

Children experience the simulation of earthquakes during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Zhang Yuwei]

Visitors learn about a robot at the booth of China Construction First Group during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

This photo shows an unmanned vehicle on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ren Chao]

This photo shows an unmanned helicopter for emergency and rescue on display during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Zhang Chenlin]

Children try coding works of smart hardware during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Zhang Chenlin]

A staff member of Beijing Rural Commercial Bank introduces a video bank device to a visitor during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

A child competes with a Chinese chess robot during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

Visitors watch a robot on display during the 2023 China International Fair for Trade in Services (CIFTIS) at China National Convention Center in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ju Huanzong]

Visitors learn about a new vehicle of Tesla during the 2023 China International Fair for Trade in Services (CIFTIS) at China National Convention Center in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Ju Huanzong]

A child tries an electric motorbike during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Zhang Chenlin]

Visitors try learning to drive with VR devices during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

Visitors line up to try an AI-powered depression assessment system at the booth of Beijing Anding Hospital during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

A visitor tries a tour guidance based on AR/VR effects at the booth of China Mobile during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

A staff member of China Unicom displays a bracelet capable of guiding and obstacle avoidance based on ultrasonic wave technology during the 2023 China International Fair for Trade in Services (CIFTIS) at Shougang Park in Beijing, capital of China, Sept. 3, 2023. [Xinhua/Li Xin]

This photo shows a digital figure during the 2023 China International Fair for Trade in Services (CIFTIS) at China National Convention Center in Beijing, capital of China, Sept. 2, 2023. [Xinhua/Ren Chao]