589. Make sure that the two pistons extend equally

2774. 第一步应该始终是工作准备,最后一步应该是收尾或清理。

2773. Suggested alternatives are aligned with their related examples

2772. procedures shall be provided for all airplanes for all cases of engine failure during takeoff and in flight

2771. In this position, the handle of the filler cap can accidentally move to its vertical ( ) position

2770. In the manual mode, the pilot uses the control module toggle switch to operate the outflow valve

2769. Groups of words that are not usually adjectives but function together as an adjective before a noun are hyphenated

2768. Handbooks may be in loose-leaf form, with durable, multi-ring cover, or permanently bound

2767. 应按照适用的飞机服务手册或维修手册完成预防性维修。

2766. 如果更改这修理程序,须获得设计机构的批准。

2765. Use a screw driver to release the clips