Be careful when you use consumable materials.

A. It is necessary to add fluid to the hydraulic reservoir.

B. Drain fluid to the hydraulic reservoir as necessary.

C. Add fluid to the hydraulic reservoir as necessary.

A. 确保座舱温度保持恒定。

B. 确保座舱压力保持不变。

C. 确保座舱湿度保持稳定。

A. The following procedures will prevent deterioration of aircraft structural coatings or system components.

B. The procedures that follow will prevent the deterioration of the airplane structure, finish, or system components.

C. The delamination of the airplane structure, finish, or system parts will be blocked by the procedures listed below.

A. 确保工作区域干净，无工具和其它物品，所有的接近盖板已经关闭。

B. 确保工作区域、工具和其它物品是干净整齐的，接近盖板已经关闭。

C. 确保工作区域、工具和其它物品是干净整齐的，接近盖板可以接近。

A. 用于把液压油储存到一定量后运送于系统中使用的部分。包括很多部件，比如：油箱、储存器、阀门、油泵、杠杆、电门、电缆、铺设管路、外部连接器等。不包括将阀门提供给使用中的系统。

B. 用来储存和运送液压油到各个使用系统的系统部分，包括油箱、蓄压器、活门、油泵、手柄、电门、钢索、管路、外部接头等部件。不包括各用户系统的供应阀。

C. 系统用于把液压油储存并运送于系统中进行使用的部分。包括以下部件：油箱、储存器、阀门、油泵、手柄，开关、电缆、铺设管路，外部连接器等。不包括输送阀门给系统使用。

A. You can calibrate all the compass systems at the same time.

B. You can fix all the compass systems at the same time.

C. You can calibrate all the magnetic needle systems at the same time.

A. Starting system refers to those units, components and associated systems used for igniting the engine.

B. Starting system refers to those units, components and associated systems used for idling the engine.

C. Starting system refers to those units, components and associated systems used for starting the engine.

A. 应包含实施飞机勤务时使用正确燃油和滑油的信息。

B. 包含有关使用正确的燃油和滑油服务飞机的信息。

C. 包含有关飞机使用正确的燃油和滑油服务的信息。

A. The cleaning/painting section should provide information concerning the material and program needed to clean and paint an area or areas, except for containing safety precautions needed to protect people and material.

B. The cleaning / paint section shall provide information unrelated to the material and procedure required to clean and paint one or more areas, and include the safety precautions required to protect personnel and material.

C. The cleaning/painting portion shall provide information as to material and procedure necessary to clean and paint an area or areas, and contain safety precautions necessary to protect personnel and material.

A. A separate document should be prepared for FAA approved airworthiness limitations which are excluded in the primary maintenance manual.

B. FAA approved airworthiness limitations shall be prepared as a separate document for inclusion in the principal maintenance manual.

C. FAA approved airworthiness limitations must be contained as an integrated documentation for inclusion in the main maintenance manual.