在云下面有飘带形的降水，在没有到达地面之前就又蒸发掉，这种现象称为

判断正误：正常起飞推力的额定功率是13360 lb (59.43 kN) 。True or False:Normal take-off thrust – 13360 lb (59.43 kN)

判断正误：双组件发动机由风扇转子(N1)和压缩机转子(N2)组成。True or False:The engine has a dual rotor consisting of a fan rotor (N 1) and a compressor rotor (N2).

附件齿轮箱包含什么组件？What is included in the Accessory Gearbox ?

N2 压缩机驱动发动机的____ The N2 compressor drives the ____

发动机的最大额定功率为在海平面的 ISA+15°C(86°F)情况下The engine performance is flat rated at 59°F (15°C) at sea level as follows:

发动机冷转（地面）：第一次冷转后，所需的启动机冷却时间是多少？Engine Motoring (Ground): The cold down time for the first time start the engine is:

发动机冷转（地面）：对于第一次冷转，启动机最长接通时间是多少？Engine Motoring (Ground): For the first time, the maximum time for starting engine is:

发动机启动（空中）：对于第二次到第五次启动发动机，启动机接通最长的时间是多少？Engine Start (Flight): For the 2nd to 5th times, the maximum time for starting engine is:

发动机启动（空中）：对于第一次启动发动机需要的冷却时间是多少？Engine Start (Flight): The cold down time for the first time start the engine is:

发动机启动（空中）：对于第一次启动，启动机接通最长的时间是多少？Engine Start (Flight): For the first time, the maximum time for starting engine is: