383.If the humidity changes frequently, put a cover on the unit( )

554.The primary document containing the procedures for the continuing airworthiness of an airplane is the airplane’s maintenance manual( )

553.Ingeneral, however, it is desired that the following chapter arrangements and breakdown be followed uniformly and to the maximum extent practicable in all manuals ( )

552.滑油的另一个重要作用是保护金属表面不被腐蚀。( )

551.Use the mark to help you put the clamp in its correct position( )

550.EEC 接收来自高压涡轮的模拟信号( )

549.Send an order for the specified paint directly to the manufacturer( )

548.用干净的布吸收液体。( )

547.分解转子顺序如下( )

546.To take-off, the pilot sets the thrust levers to the flexible take-off thrust detent if outside ambient temperature is selected on a Multipurpose Control and Display Unit ( )

545.Tighten the turnbuckle until you have the desired tension in the cable( )