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英汉对照民用航空词典                                 BOEING

MSL ALTITUDE, Altitude expressed in feet measured 平均海拔高度，

from mean sea level.                               以英尺为单位，由平均海平面量起的高度。

MUFFLER, A device in the pneumatic system for    消音器，

reducing the noise of the airflow through the pneumatic 在气源系统内，用以减低空气流经气源管道所生的噪音

duct.                                            的装置。

MULTIPLEXER, A device that allows two or more    多路传输器，

signals to be transmitted simultaneously on a single 一个能让两个或两个以上的信号同时在一道传送波，一

carrier wave, communications channel, or data bus. 条通讯线路，或一条资料数据总线上传递的设备。

N

N1 , Speed of the low pressure compressor rotor. N1转子转速，

                                                   发动机低压压气机转子的转速。

N1 BLOOM, A change in engine N1 and thrust indicated N1激增，

on the N1 gages and detected by the autothrottle BITE 油门保持过程中，在N1表上出现的由自动油门自检探

during throttle hold operation.                  测到的发动机N1和推力的变化。

N2 , High pressure compressor rotor speed.       N2转子转速，

                                                   发动机高压压气机转子的转速。

NACELLE, A streamlined enclosure on the wing or  短舱，

fuselage for the engine.                           机翼或机身上为安装发动机而用的流线形壳体。

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英汉对照民用航空词典                                       BOEING

NAND GATE, An AND gate followed by an inverter to       非与门，

form a binary circuit in which the output is logic 0 if all 在与门后面紧跟着一个反向器的二进制电路，当所有