574.The AC power system design prevents two sources to the same load at the same time.

A. 如果飞机上某个泵出现重复故障,那么可以通过此程序将壳体回油管、壳体回油软管或壳体回油软管快卸接头中的残渣冲洗掉。

B. 如果飞机上某个泵在一处出现故障,可以将壳体回油管,壳体回油软管或壳体回油软管快卸接头中的残渣清洗掉以完成此程序。

C. 如果飞机上某个泵在一处出现重复故障,说明在壳体回油管,壳体回油软管或壳体回油软管快卸接头中存在无法通过此程序清洗干净的残渣。

D. B.如果飞机上某个泵在一处出现故障,可以将壳体回油管,壳体回油软管或壳体回油软管快卸接头中的残渣清洗掉以完成此程序。

E. C.如果飞机上某个泵在一处出现重复故障,说明在壳体回油管,壳体回油软管或壳体回油软管快卸接头中存在无法通过此程序清洗干净的残渣。

A. In order to set the configuration and operate the system,the operator uses an external joystick and control panel.

B. An external joystick and control panel is used to make the configuration and operate the system.

C. To operate an external joystick and control panel for the configuration and the system operation.

A. 将车辆拉至规定的安全区域。

B. 将车辆拉至特定的、可以使用程序的区域。

C. 将车辆拉至可以使用标准程序的安全区域。

A. By way of the control unit,enter the opening in the side of the tank.

B. Get access to the control unit through the opening in the side of the tank.

C. Get access to the control unit by opening one side of the tank.

A. It includes cardinal rigging dimensions used in checking damaged aircraft or aircraft undergoing major repair .

B. It includes the basic rigging dimensions for inspection of damaged aircraft or aircraft is undergoing major repairs.

C. Basic rigging dimensions for inspection of damaged aircraft or aircraft experienced major repairs should be included.

A. 适航部分必须设定一个更换周期、结构检查内容、和相关结构检查程序要求的型号认证。

B. 适航部分对型号认证需要的强制更换时限、结构检查周期、和相关结构检查程序要做出规定。

C. 适航章节必须规定每次强制实施的更换时间、结构检查间隔、以及型号认证所需的相关结构检查程序。

A. 如果可以更早地显示维护页面,则能够显示之前的测试运行数据。

B. 它会显示上次的试验数据,如果你早些展示维护页面。

C. 如果过早地显示维修页面,它将显示前一次的测试运行数据。

A. 如果杆被意外移动,请跳过测试。

B. 如果手柄意外移动,再做一次测试。

C. 如果重新测试,确保手柄不会意外移动。

A. When the required maintenance procedure is not very long and fairly simple,the above combination can be grouped under a title which is called maintenance practice.

B. When the required maintenance procedure is not lengthy and is relatively simple,a combination of the above may be grouped under one heading and called maintenance practices.

C. When the required maintenance procedures are not very long and comparatively simple,the above combinations can be bound under one subject,calling maintenance practices.

A. The following components are recommended for alteration.The swap of other components can be made on condition.

B. The following parts are recommended to be refurbished.Other parts can be plated according to on wing status.

C. The following parts are recommended for modification.Utilization of other parts can be by in- service experience.