Revisions are to be made consistent with the format of the specification using the provisions of FAR 21.50 as a basis.

Engine fuel systems include coordinator or equivalent, engine driven fuel pump and filter assembly, main and thrust augmentor fuel controls, electronic temperature datum control, temperature datum valve, fuel manifold, fuel nozzles, fuel enrichment system, speed sensitive switch, relay box assembly, solenoid drip valve, burner drain valve, etc.

A. 发动机燃油系统包括协调器或与其不同作用的装置、发动机泵和滤清器总成、主和推力增强器、燃油控制装置、电子温度基准控制装置、温度基准阀、燃油歧管、燃油喷嘴、燃油浓缩系统、转速传感开关、继动箱总成、电磁滴水阀、燃烧器排水阀等。

B. 飞机燃油系统包括协调器或同等作用的装置、温度基准阀、燃油歧管、燃油喷嘴、燃油浓缩系统、转速传感开关、继动箱总成、电磁滴水阀、燃烧器排水阀等。

C. 发动机燃油系统包括调节器或同等装置、发动机驱动的燃油泵和油滤组件、主燃烧室和加力燃烧室燃油控制装置、电子温度基准控制装置、温度基准阀、燃油总管、燃油喷嘴、富油系统、转速敏感电门、继电器组件、电磁滴油阀、燃烧室排油阀等。

All flow control devices within the system, such as check valves, fuel pumps, accumulators, and relays should be included and indicated. Solenoid valves shall be indicated as such and shall include a notation indicating whether the valve is spring-loaded to the open or closed position. Once a symbol or device is established for a valve or control, it shall be used for this type of unit throughout the manual. The symbols used should be shown and identified in a legend block on the schematic diagram.

A. 系统内的所有流量控制装置，如止回阀、燃油泵、蓄能器和继电器都应包括在内。电磁阀应标明，并应包括一个说明，表明该阀是由弹簧加载到打开或关闭位置。一旦为阀门或控制装置确定了一个符号或装置，它应在整个手册中用于该类型的装置。所用的符号应在原理图的图例块中显示和标识。

B. 系统流程图应对该系统内的所有流量控制装置进行标识，如单向活门、燃油泵、蓄压器和继电器。电磁阀门也应标识，并以注释形式说明该阀门是否使用弹簧加载在开位或关位。一旦确定了各阀门和控制器对应的符号，则应在整个手册中保持一致。

C. 系统内的所有流量控制装置，如止回阀、燃油泵、蓄能器和继电器，都应包括在内并标明。电磁阀应按此指示，并应包括一个符号，指示阀门是弹簧加载到打开位置还是关闭位置。一旦为阀门或控制装置建立了符号或装置，则应在整个手册中将其用于此类装置。所使用的符号应在原理图上的图例块中显示和标识。

电磁活门应在图表中显示，并包含一条注释，说明活门是由弹簧加载在开位还是关位。

A. See the graphics for information of the solenoid valves which shall contain a note indicating the position of the valve (whether spring-loaded to its open or closed position).

B. Solenoid valves indicated on the schematic shall have a notation indicating when the valve shall be spring-loaded to the open or closed position.

C. Solenoid valves shall be indicated on the schematic and shall include a notation indicating whether the valve is spring-loaded to the open or closed position.

These parts can easily bend, break or become incorrectly aligned.

A. 这些部件易于弯曲、断裂或出现尺寸错误。

B. 这些部件很容易发生弯曲或失去对齐。

C. 这些部件很容易弯曲、断裂或对不齐。

Water/waste subsystem includes wash basins, toilet assemblies, tanks, valves, etc., if applicable.

A. 饮用水/非饮用水系统包括洗手池、饮水机组件、水箱、阀门等（如适用）。

B. 洗涤子系统包括洗手池、马桶组件、水箱、阀门等（如适用）。

C. 水/废水子系统包括洗手池、卫生间组件、水箱、阀门等（如适用）。

Try to confirm the effective date and revision number and date if applicable.

A. 必须找到生效日期、修订号和修订日期（如申请）。

B. 必须记录生效日期、生产号和修订日期（如适用）

C. 尝试确认生效日期、修订号和修订日期（如适用）。

This check is used to examine the engine components or system for leakage when the engine operates at the idle-power position.

A. 这项检查是用于当发动机出现渗漏时，检查部件和系统是否松动。

B. 该项检查能够发现发动机部件或系统是否有渗漏。

C. 该项检查用于在发动机低速运行时，检查发动机部件或系统是否有渗漏。

这个钢板长1.5米，厚3/8厘米。

A. The steel plate measures 1.5 metres long and 3/8 centimeter thick.

B. The steel plate measures 1.5 metres long and 3/8 decimeter thick.

C. The aluminum plate measures 1.5 metres long and 3/8 decimeter thick.

Sometimes you must break long sentences into shorter ones, delete information which is not necessary, or ask an engineer for further explanation.

A. Sometimes you have to change long sentences to shorter ones, remove unnecessary information, or ask an engineer to get further explanation.

B. Some time you have to incorporate long sentences into shorter ones, decrease unnecessary information, or require an engineer for further instruction.

C. Sometime you must illuminate long sentences into shorter ones, ignore information which is not necessary, or order an engineer for further definition.

单向活门是液压或气动部件，允许流体在一个方向上完全流动，但阻止所有反向流动。

A. Check valve, that allows fluid blows in one direction completely but blocks all flow in the other direction, is a pneumatic or hydraulic system component.

B. Oneway valve is a hydro or gaseous system component that allows fluid flows in one direction freely but blocks all flow in the opposite direction.

C. Check valve is a hydraulic or pneumatic system component that allows full flow of fluid in one direction but blocks all flow in the opposite direction.