2486.格式可以完全或部分使用此格式。

A. Because pressurized air can blow contamination away from the display unit,you should not use it to clean the holes behind the display unit in order to avoid damaging the equipment.

B. Do not use compressed air to clean the holes on the rear of the display unit.Compressed air will push contamination into the display unit.This can cause damage to the equipment.

C. Do not use compressed air to clean the holes behind the display unit,because it can blow contaminants into display unit which may be damaged.

A. 拆下螺栓和止动块。

B. 拆下螺帽和挡板。

C. 拆下螺钉和螺帽。

A. 在飞机座舱增压系统部分,应说明该系统如何与加热、通风、除霜和空调系统连接。

B. 在飞机座舱增压系统部分,说明该系统如何与加热、通风、除霜和空调系统同时使用。

C. 在飞机座舱增压系统部分,说明该系统如何与加热、通风、除霜和空调系统成为一体。

A. 系统的这个部分用来显示数量、温度和液压油的压力,包括的项目有传输机、指示器和告警系统等。

B. 用来显示液压油的质量,温度和压力的系统部分,包括转换器、指示器和告警系统等元件。

C. 系统中用来指示液压油的油量、温度和压力的部分,包括传感器、指示器和告警系统等组件。

D. C.系统中用来指示液压油的油量、温度和压力的部分,包括传感器、指示器和告警系统等组件。

A. When the light goes off,set the switch to NORMAL.

B. When the light is illuminated,move the switch to NORMAL.

C. When the light is extinguished,move the switch to NORMAL.

A. 如果你发现低于正常数量的空气从桅杆排出,做系统功能测试。

B. 如果你发现从通风口桅杆排出的空气量不正常,做系统测试。

C. 如果你发现不寻常的空气量从主排气口排出,做功能测试。

A. 直接从高压气瓶中放气是不可取的。

B. 不要直接用高压气瓶从系统中抽气。

C. 不要直接用高压气瓶给系统充气。

A. When installing the distributor,refrain from changing the timing.

B. Ensure that you do not adjust the timing to install the distributor.

C. Do not move the timing when you install the distributor.

A. Slowly and fully extend the RAT and make sure that it does not touch other parts.

B. Quickly and fully retract the RAT and make sure that it does not touch other parts.

C. Slowly and carefully extend the RAT and make sure that it does not attach to other parts.

A. To know what you want to say and to use the words that give the wanted meaning shall always be assured.

B. In order to express the meaning that you want,always make sure that you know what you want to say and you use the words.

C. Always make sure that you use what you want to say to express the words with the meaning that you want.