540.确保移除了所有的设备和工具。 ( )

397.Individual wire identification codes are established to assist in tracing circuitry ( )

396.Some models have this function, but some do not ( )

395.单向活门是液压或气动部件,允许流体在一个方向上完全流动,但阻止所有反向流动。( )

394.Soak the element for four hours( )

393.A list of Page Effectivity should be provided in the front of each Manual and can be combined with the Table of Contents,or in front of each System/Chapter( )

392.重心随着机翼上的载荷而移动。( )

391.Grease the fasteners( )

390.Fuel Grade or Specification [including color), alternate fuels and approved additives

389.空气通过发动机进入压气机的部分。包括导流叶片、支撑罩、外壳等。 ( )

388.The information is applicable to the entire system ( )