?An echelon of trainer planes takes part in a military parade during the celebrations marking the 70th anniversary of the founding of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Li Xin)
An echelon of trainer planes takes part in a military parade during the celebrations marking the 70th anniversary of the founding of the People's Republic of China (PRC) in Beijing, capital of China, Oct. 1, 2019. (Xinhua/Li Xin)
