Annunciator an annunciator is an accessory device used to give remote indication of the status of an operating component in a system.
指示器指示器作为一个附属装置常用于远程显示系统的各个组成部分的运行状态。
The circuits this system needed to control included LED show circuit, annunciator circuit and the circuit to control microwave machine.
本系统所需控制的电路包括LED显示电路、声光报警电路及微波器控制电路。
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