2337.Distribution subsystem is that portion used to distribute below atmospheric pressure air to using systems.

A. 拆下法兰上的四个螺钉。

B. 拆下连接法兰到活门的四个螺帽。

C. 拆下连接法兰到阀盖上的四个螺丝。

A. 将导轨嵌放在轴上。

B. 将套筒放在支杆上。

C. 把吊环钩在钩环上。

A. The computer needs to be backup at each interval.

B. The backup of the computer is necessary.

C. Back up your computer regularly.

A. 任何关于最大乘客座位的规定,例如对乘客数量或座位占用特别要求,都应给予说明。

B. 任何对最大乘客座位数量的规定都应声明,是按照乘客人数规定,或是按照座位占用特别规定。

C. 针对最大乘客座位数量的任何限制都应加以说明,包括乘客人数或座位占用的具体限制。

A. Failure of the air turbine starter can trigger the engine overheat and fire indications.

B. The air turbine starter fails to trigger the engine overheat and fire indications.

C. Failure of the air turbine starter can cause the engine overheat and fire indications.

A. NOTE: The manufacturer may have the option of including wiring schematic in Chapter 24,Chapter 91,or establish a separate Wiring Diagram Manual.

B. NOTE: The manufacturer may have the option of including wiring schematic in Chapter 24,Chapter 91,or establish a separate Wiring Schematic Manual.

C. NOTE: The manufacturer may have the option of including wiring diagrams in Chapter 24,Chapter 91,or establish a separate Wiring Diagram Manual.

A. 把 O 形封圈浸泡在液压油里面。

B. 防止液压油腐蚀 O 形封圈。

C. 用液压油润滑 O 形封圈。

A. The power plant refers to the overall power package,including engine,air intake,bracket,cowling,nacelle,cowl flaps,cooling baffles,etc.

B. The power plant refers to the overall power package inclusive of engine,air intake,mount,cowling,scoops,cowl flaps,cooling baffles,etc.

C. The power plant refers to the overall power package inclusive of engine,air intake,mount,cowling,nacelle caps,fairing flaps,cooling baffles,etc.

A. When cleaning corrosion with a cleaning fluid,avoid damaging adjacent areas.

B. Avoid damaging the area around when we clean the corrosion with cleaner.

C. Use solution to clean the corroded area and prevent to damage the surroundings.

A. The arid welding coat may be polished with thin abrasive paper to hold a smoother layer.

B. The waterless painting coat may be worn with precise abrasive paper for a smoother surface.

C. The dried spray coat may be sanded with fine sandpaper to obtain a smoother finish.