Photo shows the drone performance in Hangzhou, east China's Zhejiang Province, January 11, 2022. Hangzhou started the normalized drone performance for the countdown of the 2022 Asian Games on Tuesday. Patterns like the event's mascots, torch and countdown numbers debuted over the venues of the 2022 Asian Games. (Photos: China News Service/Wang Gang)

Photo shows the drone performance in Hangzhou, east China's Zhejiang Province, January 11, 2022. Hangzhou started the normalized drone performance for the countdown of the 2022 Asian Games on Tuesday. Patterns like the event's mascots, torch and countdown numbers debuted over the venues of the 2022 Asian Games.

Photo shows the drone performance in Hangzhou, east China's Zhejiang Province, January 11, 2022. Hangzhou started the normalized drone performance for the countdown of the 2022 Asian Games on Tuesday. Patterns like the event's mascots, torch and countdown numbers debuted over the venues of the 2022 Asian Games.

Photo shows the drone performance in Hangzhou, east China's Zhejiang Province, January 11, 2022. Hangzhou started the normalized drone performance for the countdown of the 2022 Asian Games on Tuesday. Patterns like the event's mascots, torch and countdown numbers debuted over the venues of the 2022 Asian Games.