名词
中文翻译：键控电路同义词
同义词：
['keyed circuit', 'keyed relay']
例句：
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1. The keying circuit is responsible for controlling the speed of the motor.
键控电路负责控制电机的速度。
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2. In this circuit, the keying signal is sent through a series of gates to control the flow of electricity.
在这个电路中，键控信号通过一系列的门来控制电流的流动。
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3. The keying circuit was designed to prevent accidental activation of the alarm system.
键控电路被设计成防止误触发警报系统。