This photo taken on July 4, 2023 shows a view of the opening ceremony of the Global Digital Economy Conference 2023 at the China National Convention Center in Beijing, capital of China. The Global Digital Economy Conference 2023 is scheduled from July 4 to 7 in Beijing. (Xinhua/Ren Chao)

This photo taken on July 4, 2023 shows an automatic delivery vehicle at an exhibition during the Global Digital Economy Conference 2023 at the China National Convention Center in Beijing, capital of China. The Global Digital Economy Conference 2023 is scheduled from July 4 to 7 in Beijing. (Xinhua/Ren Chao)

A staff member displays a shore crane remote control simulation system at an exhibition during the Global Digital Economy Conference 2023 at the China National Convention Center in Beijing, capital of China, on July 4, 2023. The Global Digital Economy Conference 2023 is scheduled from July 4 to 7 in Beijing. (Xinhua/Ren Chao)

This photo taken on July 4, 2023 shows an unmanned delivery vehicle at an exhibition during the Global Digital Economy Conference 2023 at the China National Convention Center in Beijing, capital of China. The Global Digital Economy Conference 2023 is scheduled from July 4 to 7 in Beijing. (Xinhua/Ren Chao)