In the description of the airplane＇s Propeller, the propeller and its operation if pitch can be varied shall be deseribed.

A. 通常，涡轮发动机转速计会以涡轮额定最大转速的百分比测量转速。

B. 涡轮发动机转速计通常会测量一个百分比转速，并与涡轮的正常最大转速比对。

C. 涡轮发动机转速计通常测量的速度与涡轮发动机最大名义转速成正比。

A. Do a tire pressure check, and if necessary inflate the tires.

B. Check the pressure of a wheel and charge it if necessary.

C. Inspect the tire pressure and it＇s required to refuel.

A. Use schematics and drawings to briefly explain the operation of the system, including warning devices and control features during use.

B. Making use of simplified schematics and drawings explain how this system operates, including warning devices and control features in use.

C. The simplified diagrams and drawings are the indication of the system operation, including warning devices and control features in use.

A. 对仅使用涡轮驱动的飞机，应提供对动力装置部件的温度和高度限制的说明。

B. 仅针对以涡轮螺旋桨为动力的飞机，应提供动力装置部件和发动机流体的标定温度和相应的高度限制。

C. 对涡轮增压的飞机，要提供其动力装置部件和发动机液体的说明。

A. Prior to and aft use the tool / equipment, the user shall make a visual check or operational test to confirm the utility.

B. Before or after using the tool / equipment, the user shall make a visual check or functional test to confirm the serviceability.

C. Before or aft of using the tool / equipment, the user shall make a spot check or functional test to inform the usability.

A. Sentence forms shall be simple and direct, avoiding the obvious, the elementary and discussions of theory except where essential for practical understanding and application.

B. Sentence forms shall be simple and direct, avoiding the obvious and the elementary, and omitting discussions of theory except where essential for practical understanding and application.

C. Sentence forms shall be simple and direct so as to avoid the obvious and the elementary, and to omit discussions of theory except where essential for practical understanding and application.

A. 开口销被用于发动机控制、起落架、尾轮组件或任何作动运动发生的其他地方。

B. 开口销被用于发动机控制、起落架、尾轮组件或任何点，来使作动运动发生。

C. 开口销被用于发动机，控制起落架、尾轮组件或任何作动运动占据的其他点。

A. 这些测试可能需要额外的地面支持设备，应比操作测试更具体和详细。

B. 这些试验可能需要增加地面支持设备，应比操作测试更专业和详实。

C. 这些测试可能需要提供专门的地面支撑设备，应比功能试验更特殊和详细。

A. 如果发现变质或损伤，必须在特定的间距内对修理进行检查和更换。

B. 修理必须在特殊的时间内进行检查，如果发现变形或损坏，则考虑更换。

C. 必须在规定的间隔内对修理进行检验，如发现老化或损坏，则必须更换。

A. 拆下故障部位后部的标签。

B. 排除故障后，拆下标签。

C. 出现故障后，拆下铆钉。