one ohm of resistance causes current flow of one      电流的单位。1伏电压在1欧姆的电阻上所产生的电流为

ampere.                                             1安培。

AMPLITUDE, The size or magnitude of a voltage or    振幅，

current waveform.                                     电压或电流波形的幅度。

ANALOG, Quantities or representations that are      模拟式，

variable over a continuous range.                     用连续性变化的信号来工作，或产生连续性变化的信号

                                                    系统。

ANALOG-TO-DIGITAL, The process of converting an     从模拟式到数字式，

analog signal to a digital signal.                    将模拟式信号，转换成数值式。

AND GATE, A device or circuit with two or more inputs 与门，

of binary digital information and one output. The output 一种有两个或两个以上的二进位数字信息输人，一个输

is 1 only when all of the inputs are 1. The output is 0 出的装置或电路。当所有输人为1，输出为1。当任何一个

when any one or more inputs are 0.                  或一个以上的输人为0时，输出为0。

                                    TECHNICAL DICTIONARY                                 9

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英汉对照民用航空词典                                          BOEING

ANEROID, A sealed flexible device containing air at low    膜盒，

pressure, which expands or contracts during change of         内含低压空气的密封弹性装置。当它周围的压力变化

pressure outside the device.                                时，会膨胀或收缩。

ANGLE GEARBOX, A part of an engine, mechanically            伞齿轮箱，

driven by the compressor, which drives the accessory          发动机的一部分。被压气机以机械方式驱动，然后驱动

gearbox. A mechanical device for changing the direction     附件齿轮箱。是改变驱动方向的机械装置。