292.Lubricate the seal before its installation.

A. It includes items such as audio selector control panel,microphones,head- phones,cockpit loud speakers,etc.

B. It includes items such as automatic selector control panel,interphones,head- phones,cockpit loud speakers,etc.

C. It includes items such as audio selector control panel,microphones,head- phones,cockpit speakers,etc.

A. 如果燃油设备显示有游离水,请排空系统。

B. 如果燃油样本显示有多余水,请排空系统。

C. 如果燃油样本显示有游离水,请排空系统。

A. A centrifugal pump supplies hydraulic fluid to the unit.

B. The unit is isolated from hydraulic fluid through a centrifugal pump.

C. A centrifugal pump withdraws hydraulic fluid from the unit.

A. 为了简化阅读和相互援引,插图、图形和表格应尽可能以纵向排列布局呈现。

B. 为方便阅读和相互参照,如可行,插图、图形和表格应垂直排列布局。

C. 为了精简阅读和交叉索引,插图、图标和表格如可行,应纵向排列布局。

A. The specification is designed to cut off the cost to general aviation airplane owners and operators and maintenance personnel.

B. The target of the specification is to reduce the cost of general aviation airplane owners and operators and maintenance personnel.

C. The objective of the specification is to minimize the cost to general aviation airplane owners and operators and maintenance personnel.

A. When the crossfeed system is open,it is possible for one fuel pump to supply fuel to the two engines.

B. When the supplying system is open,it is possible for one fuel pump to supply fuel to the two engines.

C. One fuel pump can supply fuel to two engines,as the supplying system is open.

A. 确保撑杆轮与滑道上的凸槽对齐。

B. 确保转向架滚轮与轨道上的凹槽对齐。

C. 确保支架凸轮与滑轨上的滑块对齐。

A. According to instrument error and compressibility effects,Outside Air Temperature is corrected.

B. Outside Air Temperature is set to avoid instrument error and compressibility effects.

C. Due to instrument error and compressibility effects,Outside Air Temperature is modified.

A. 使用良好的设备去做这项检查以及目视检查。

B. 使用正确的设备去做这项检查而不是目视检查。

C. 使用正常的设备去做这项检查而不是目视检查。

A. 应描述系统中每个组件的功能、操作以及位置。

B. 系统中每个组件的目的、操作应和位置一样被描述。

C. 系统中每个组件的功能和构成应被描述得和位置一样好。