Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

Tourists view planes displayed at an outdoor exhibition area in Beijing, capital of China, Dec. 16, 2021. The China Aviation Museum has resumed free admission to the public, with a daily reservation limit of 3,000. Previously, the China Aviation Museum was closed from December 30, 2020 due to renovation work and epidemic prevention and control. （Photo by Zhao Jun/Ecns.cn）

来源：GMW.cn