... airliner 民航客机 airline transport pilot certificate民航运输驾驶员证书 air load 空气负载 ...
双语例句
1
The pilot held a current airlinetransport pilots licence ( helicopters and gyroplanes ) and a valid class one medical certificate. he had 3, 900 hours of operating experience.
The pilot held a current airlinetransport pilots licence (helicopters and gyroplanes) and a valid class one medical certificate. He had 3, 900 hours of operating experience.