A filter prevents contamination of the components in the system.

A. 剪切销断裂时，确保拖杆完整。

B. 如果剪切销断裂，检查拖杆。

C. 检查拖杆对剪切销断裂的影响。

A. The turbines are used to extract energy from the exhaust gases and are coupled to the crankshaft.

B. The turbines can drive energy to exhaust gas and connects crankshaft.

C. The turbines can extract energy from the exhaust gases and drive the crankshaft.

A. Use the tube if it＇s worked into 3.3 feet long.

B. Use a tube whose length is 3.3 feet.

C. The tube which is used is 3.3 feet length.

A. 此时不要拆解弹簧筒组件。如果弹簧负载没有正确释放，会造成人员受伤或零件损伤。

B. 此时不要错装弹簧筒组件。不正确的操作，弹簧负载会造成人员受伤或零件损伤。

C. 不要在这个时候拆下弹簧筒组件。如果不小心释放，弹簧负载会造成人员受伤或零件损伤。

A. Airplane primary data should be displayed neither in graphs and tables.

B. Airplane behavior data shall be predicted in both graphical and tabular formats.

C. Aircraft performance parameters can be represented graphically or in tables.

A. The layout does not rely on devices that require power such as computers.

B. The format should not rely on devices such as a power computer.

C. The forms should be independent from any equipment, computers are suitable.

A. In the turbofan engine maintenance handbook this chapter would include such subjects as removal, cleaning, inspection, disassembly, testing , etc.

B. In the turbofan engine repair manual this section would include such topics as disassembly, cleaning, checking, accessory, adjusting , etc.

C. In the turbofan engine overhaul manual this section would include such subjects as teardown, cleaning, inspection, assembly, testing , etc.

A. 前区域空气调节支管减少空气量来分配前空调区域传送的噪声。

B. 前区域配平空气消音器减少输送到前空调区域的空气分配噪声。

C. 前区域调整片的空气套管输送空气到前空调区域，以减弱噪声分布程度。

A. 在测试结束时要监控速度指示。

B. 在测试后期要监控速度的持续性。

C. 持续监控速度指示至测试结束。

A. Check the bypass valves.

B. Close the isolating valves.

C. Inspect the check valves.