如果固态样品中有金属屑，则更换泵。

用于感应和指示过热、烟雾或火灾情况的检测系统，如果被制造商指定为标准设备配置，则是消防系统的一部分。

A. Detection is that portion of the fire protection system which is used to sense and indicate the presence of overheat, smoke, or fire, if furnished as manufacturer-designated standard equipment.

B. If specified as standard equipment by the manufacturer, such equipment is that portion of the fire protection system. Detection equipment includes systems for transmitting and indicating conditions of overheating, smoke or fire.

C. If the equipment is part of a fire protection system and is designated as standard equipment by the manufacturer, the detection equipment includes the sensing and indication of overheat, smoke or fire.

The topic sentence is the first and most important sentence in a paragraph.

A. 中心句是一篇文章的第一句，也是最重要的一句。

B. 总结句是一节内容的第一句，也是最重要的一句。

C. 主题句是一段话的第一句，也是最重要的一句。

喷油嘴堵塞可能导致操作错误。

A. Possibly, the incorrect operation will occur due to the contaminated oil jet.

B. Incorrect operation is absolutely resulted from a blocked ignitor.

C. A blocked oil jet can cause incorrect operation.

维修人员在维修之前要读服务通告, 了解相关要求。

A. The maintenance personnel shall read the Service Notice and comply with the requirements ahead of maintenance.

B. Service Bulletin should be read and related requirements should be known prior to maintenance by the maintenance personnel.

C. Read Service Bulletin and understand the content of requirements during maintenance.

A pressurized system can cause injury to persons when they do work on it.

A. 操作增压的系统时会导致人员受伤。

B. 对压力系统进行工作时会导致人员受伤。

C. 增压系统会导致正在工作的人员伤亡。

The drain and vent system consists of lines collecting and carrying waste fluids and vapor overboard from the engine and nacelle accessories. Drains are provided to carry fluids from any point where lines and accessories may leak and where fluids may accumulate in a cavity. Fluid from forward and aft sumps, oil-fuel heat exchanger, VBV, and VSV are discharged overboard through drains. In addition, some drain lines serve as vents to carry air and vapor from the engine and accessory cavities.

A. 放泄系统由管路组成，管路收集来自发动机和短舱的废液和水汽，并把它们排向机外。放泄管出现在可能泄漏的管路、附件的任何点上，也可能出现在油液会聚集于某一个腔的地方。来自于前后腔、滑油-燃油换热器、可调放气活门、可调静子叶片的油液也会通过这些放泄管排到外面。有些放泄管还有通风口的作用，它们会把发动机和附件内的空气和水气带到外面。

B. 放泄系统由管路组成，管路收集来自发动机和吊舱的废液和水汽，并把它们排向机外。放泄管出现在可能泄漏的管路、附件的任何点上，也可能出现在油液会聚集于某一个腔的地方。来自于前后腔、液压油-燃油换热器、可调引气活门、可调静子叶片的油液也会通过这些放泄管排到外面。有些放泄管还有通风口的作用，它们会把发动机和附件内的空气和水气带到外面。

C. 放泄系统由管路组成，管路收集来自发动机和短舱的废液和水汽，并把它们排向机外。放泄管出现在可能泄漏的管路、附件的任何点上，也可能出现在油液会聚集于某一个腔的地方。来自于前后腔、滑油-燃油换热器、可调放气活门、可调静子叶片的油液也会通过这些放泄管被放压。有些放泄管还有通风口的作用，它们会把发动机和附件内的空气和水气带到外面。

请不要用湿的手去触碰USB电源适配器。

A. Please do not make the USB power adapter wet with your hands.

B. When the USB power adapter is wet, please do not touch it.

C. If your hands are wet, do not touch the USB power adapter.

Deactivation/Reactivation procedures for circuits, systems, units, etc., shall be included. This is important because during maintenance, certain components may need to be deactivated for safety reasons or to prevent damage to the aircraft or equipment. It is also important to have instructions for reactivating these components once maintenance is complete to ensure that they are functioning properly and do not pose a risk to the safety of the aircraft or its occupants.

A. 停用/重新启用电路、系统、组件等的程序应包括在内。这是因为在维护过程中，由于安全原因或为防止对飞机或设备造成损坏，某些部件可能需要停用。同样重要的是，一旦维护完成，需要有重新启用这些部件的说明，以确保它们正常运行，不会对飞机或机上设备的安全构成风险。

B. 停用/重新启用电路、系统、组件等的程序应包括在内。这是因为在维护过程中，由于安全原因或为防止对飞机或设备造成损坏，某些部件可能需要停用。同样重要的是，一旦维护完成，需要有重新启用这些部件的说明，以确保它们工作正常，不会对飞机或机上人员的安全构成风险

C. 停用/重新启用管路、系统、组件等的程序应包括在内。这是因为在维护过程中，由于安全原因或为防止对飞机或设备造成损坏，某些部件可能需要停用。同样重要的是，一旦维护完成，需要有重新启用这些部件的说明，以确保它们工作正常，不会对飞机或机上人员的安全构成风险

Plastic covers are fitted into the seat tracks to cover the exposed track sections.

A. 座椅小桌板上覆盖了一层塑料，以盖住经过处理的小桌板部分。

B. 塑料罩被安装在座椅导轨上，以覆盖暴露的导轨部分。

C. 塑料罩被安装在座椅导轨上，以覆盖经过处理的导轨部分。

注意：制造商可以选择将线路图放在第24章、第91章或放在一本独立的线路图手册中。

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.