1055、 If the airplane has a built-in auxiliary power unit, describe it and explain how
it fits in with the electrical system

488 磁性工具对罗盘系统有不利影响。

487 安装排放调和正确的垫圈。

486 Whether or not the value shown is limiting,it should be stated.

485 Turn the cap counterclockwise.

484 The format of the cruise performance presentation is at the discretion of the airplane manutacturer but should not rely on devices such as a power computer

483 The Radio Altimeter( )system determines the height of the aircraft above the terrain during initial climb,approach and landing phase.

482 Whenever practical, each symbol should physically resemble the actual system component depicted in the schematic diagram.

481 The diagram shall be arranged sothat the flow of the system can be traced with a m inimum of effort.

480 Subject headings shall be the same as,or substantively equivalent to,the examples used in this Specification except when not appropriate because of the design or operational features of the type of airplane.

479 Remove the fuel from the ground before you try to start the engine again.