1274. When the turbine is released to spin, it accelerates without pump load As the turbine speed gets to the operational range, the pitch cam changes the angle of the blades to the intermediate position( )

3026. N1 vibration level above this guideline are generally accompanied by airframe vibrations( )

3025. The recirculation system uses a fan to move air from the passenger compartment to the main distribution manifold This system reduces the amount of air necessary for the packs to supply ( )

3024. Install the adapt with the shottest thread area on the plate( )

3023. 对于动词或者形容词只使用经批准的形式( )

3022. The unit pressurizes and filters the oil ( )

3021. Engine fire detection system is system of dual loop( )

3020. 安全扫描器检测金属物体。( )

3019. The system test, which is self-contained and may duplicate other tests, contains all adjustments and tolerances to maintain systems or units at maximum efficiency ( )

3018. Release the pressure from the hydraulic system ( )

3017. Individual wire identification codes are established to assist in tracing circuitry [Figure 5)