854. The check list may be followed by additional information to provide pilot with a better understanding of the reasons for actions in the check list

2509. The lateral axis of the airplane is also called the pitch axis, and movement of the elevators rotates an airplane about its laternal axis

2508. 一些化学品必须良好保存,才能使用。

2507. 此过程需要两个人。

2506. 确保没有沿翼展移动的迹象。

2505. The oil is dangerous if you let it be absorbed through your skin and into your body

2504. Unit or assembly removal/installation procedures may reference a system/subsystem test only if the major test procedure is so utilized that the individual assembly/unit test may be called out without overlap and if accomplishment shall not require completion of the whole system test

2503. Relieve system pressure

2502. 功能检查左VHF无线电设备发现其有静电干扰及噪音。

2501. If the aircraft is parked on a slope, make sure that the wheel chocks are in position

2500. 喷气式发动机的基本原理很简单,其结构也非常简单。