In the description of the airplane＇s Engine, the following information about engine instrumentation shall be described: 1.the method of operation 2.limits of readings and typical values where applicable.

A. 检查油管，对于磨损的区域。

B. 磨削管道并检查。

C. 检查管道是否磨损。

A. 对泵的控制电门进行保护可以防止误操作。

B. 泵的控制电门可以对误操作进行保护。

C. 泵的控制电门上的保护装置可以防止意外操作。

A. 描述飞机发动机时，如果有发动机火灾监测或灭火系统，请描述其工作原理，并说明如何使用。

B. 描述飞机发动机时，如果安装有发动机火警探测或灭火系统，应予以描述、解释其工作原理，并说明如何使用。

C. 描述飞机发动机时，如果有发动机火情探测或熄灭系统，请描述其工作原理，并说明如何使用。

A. Make sure there is no leakage of hydraulic fluid at the router.

B. Make sure there is no leakage of hydraulic fluid at the transducer.

C. Make sure there is no leakage of hydraulic fluid at the transponder.

A. 通常，希望下面的章排列好，所有手册中的故障被统一推断出并最大范围实施。

B. 一般而言，要求在手册适用的最大程度统一地遵循以下章的布局和划分。

C. 总的来说，所有手册中随后的章的安排和分类应该遵循一致性和最大可行性。

A. 将钢索穿过导管至客舱地板下方。

B. 安装钢索，将其穿过座舱地板下方的导管。

C. 通过驾驶舱地板下方的导管安装线束。

A. Do not exceed this dimension or Mach in any operation.

B. Do not exceed the regulated flight speed or Mach Number in any operation.

C. Do not exceed this speed or Mach Number in any operation.

A. 应说明载荷计算中使用的配载程序和“基本空重”考量。

B. 应说明配载计算时使用的计算程序和“基本空重”数据。

C. 应说明需在载荷计算中使用计算程序和“操作空重”数据。

A. Recommending or requiring life limited components is on the right side of the page in an appropriate margin.

B. Recommended or required retirement time of life limited parts is on the right side of the page in an appropriate space.

C. The required retirement time of life limited components is located on the right side of an appropriate space.

A. Ensure the oxygen tubes are completely clear. If oxygen is mixed with oil or compound together, it will form an explosives. Explosion can cause damage to equipment or injury to personnel.

B. Make sure that the oxygen tubes are fully clean. Oxygen and oil or grease make an explosive mixture. An explosion can cause injury or death to personnel.

C. Guarantee the oxygen tubes are completely free of dirts. Oxygen, oil and grease can combine to form an explosive oxides. Explosions can cause casualties.