1480.The system design makes sure that two AC power sources can not supply power to the same transfer bus at the same time.

A. 隔离引起故障的部分。

B. 隔离部件产生了故障。

C. 引起故障的部分已经被隔离。

A. 液压系统的主要压力用于飞行控制系统。

B. 飞行控制运行所需的压力来源于起主要作用的液压系统。

C. 液压系统的主要功能是为飞行控制系统的操作提供压力。

A. In order to avoid edge effects on vibration routes that may misinterpret test readings,the test pitot should be moved so that the detection route moves along the surface edge to provide a constant edge for the test pitot detection.

B. To avoid edge effects on vibration paths which give a test reading that may be misinterpreted,the test probe should be moved so that the inspection path follows the surface edge,giving a constant edge for the test probe to inspect.

C. The detector should be removed along the inspection route which follows the surface edge to provide an immobile edge to detect,so as to avoid the effects on vibration route edge which may lead to the misunderstanding of the test reading.

A. 封面上的信息将由制造商自行决定。

B. 封面包含的信息将由制造商保留。

C. 封面必须包含制造商保留的信息。

A. Each manufacturer is expected to abide by the Specification content and arrangement without any deviation in order to reasonably achieve the objectives of this Specification (enhance safety,reduce efforts,minimize costs).

B. It is mandatory that each manufacturer adhere to the Specification content and arrangement to achieve the objectives of this Specification (enhance safety,reduce efforts,minimize costs).

C. Each manufacturer is expected to adhere to the Specification content and arrangement reasonably so as to enhance safety,reduce efforts,and minimize costs which are the objectives of this Specification.

A. 注:如果登机软件打包失败,将其补齐。

B. 注:如果随机软件包丢失,将其补齐。

C. 注:如果随机行李丢失,请提供行李牌。

A. 描述飞机发动机时,应描述有关发动机仪表的以下信息:仪表操作方法读数极限值和典型正常值(如适用)。"

B. 描述飞机发动机时,应描述发动机仪表有关:操作方法读数限制和典型值(如适用)。"

C. 描述飞机发动机时,应描述一下发动机仪表:操作方法限制读数以及典型值(如适用)。

D. B.描述飞机发动机时,应描述发动机仪表有关:操作方法

E. B.描述飞机发动机时,应描述发动机仪表有关:操作方法读数限制和典型值(如适用)。"

F. C.描述飞机发动机时,应描述一下发动机仪表:

G. C.描述飞机发动机时,应描述一下发动机仪表:操作方法

H. C.描述飞机发动机时,应描述一下发动机仪表:操作方法限制读数以及典型值(如适用)。

A. 如果油箱中不是所需的油液,可能会使泵损坏。

B. 如果油箱中的油量过多,可能会使泵损坏。

C. 如果油箱中的油量不足,可能会使泵损坏。

A. Check the defect before you start the procedure again.

B. Rectify the defect before you start the procedure again.

C. Define the defect before you start the procedure again.

A. 一个尖的整流环把气流分成两部分。

B. 一个整流锥把气流分成两部分。

C. 一个分流整流罩把气流分成两部分。