of drive.

ANGLE OF ATTACK, The angle of the wing chord in             迎角，

relation to the free stream airflow as it moves forward       机翼翼弦在空气中向前运动时与自由气流之间的夹角。

through the air.

ANGLE OF INCIDENCE, The acute angle which the               安装角，

wing chord makes with the longitudinal axis of the            飞机的纵轴与机翼弦线所形成的锐角。

aircraft.

                                         TECHNICAL DICTIONARY                                         10

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英汉对照民用航空词典                                     BOEING

ANNUNCIATIONS, Audio or visual indications used to    通告，

call attention to an event that has taken place.        当发生事件时，以声音或目视指示形成的提示信号。

ANNUNCIATOR, A visual device consisting of a number   信号牌，

of lights. Each light indicates the condition which exists 由一系列指示灯组成的目视装置。每个指示灯都有相应

or has existed in an associated circuit and is labeled 的标记，用来显示与之有关的电路的现有情况或已存在的

accordingly.                                          情况

ANODE, The element toward which the principal stream  正极，

of electrons flows.                                     主电子流向的极位。

ANOMALY, Not normal.                                  异常，

                                                        不正常。

ANTENNA, A device which, used in conjunction with a   天线，

transmitter or receiver, is used for radiating or receiving 一种与发射机或接收机共同工作来发射或接收无线电

radio waves.                                          波的装置。

ANTI-ICING, A method of preventing ice formation on   防冰，