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- AUXILIARY POWER UNIT, A small turbine engine in the airplane for supplying electrical and pneumatic power for systems operation on the ground or in flight. 辅助动力装置,是飞机内的小涡轮发动机,在地面或空中给各系统提供电源和气源。
- To turn off(an aircraft engine) while in flight. 关引擎在飞行中关掉（飞机的一个引擎）
- The bird extended its wings in flight. 那鸟展翅飞翔。
- Astronauts in flight must adjust to weightlessness. 宇航员在飞行中必须适应失重状态。
- The birds rose and dipped in flight. 鸟儿在飞行中时高时低。
- She photographed the birds in flight. 她拍摄鸟儿飞行的照片。
- The undercarriage on light aircraft does not always retract in flight. 轻型飞机飞行时起落架不一定缩回。
- Starting and accelerating model of missile turbojet engine in flight test 弹用涡喷发动机飞行试验启动加速性能仿真
- The Most Powerful Diesel Engine in the World! 好庞大的柴油机啊!
- Will you be showing a movie in flight this evening? 今天晚上飞机上会放映电影吗?
- He tore down the engine in order to repair it. 他把发动机拆开修理。
- The engine in the old car finally went. 这辆旧汽车的发动机终于损坏了。
- The plane was fatally crippled when the rear cargo door was pulled off in flight. 当后舱门在飞行中被掀掉时，飞机受到了致命的损伤。
- The worker set the engine in motion. 工人开动了发动机。
- It's unusual to see swans in flight. 看见天鹅飞是不寻常的。
- Most Powerful engine in the world. 最有力的发动机，在世界上。
- The bird extendedits wings in flight. 那鸟展翅飞翔。
- The bird was shot down in flight. 这只鸟是在飞行中被打下来的。三、练习题。
- It flutters like soft wings in flight. 象轻捷的翅膀在飞翔
- The smugglers were in flight for the border. 走私犯正逃往边境。
