The volume control circuit is composed of a programming switch and a computer storing magnifying executive circuit, and can realize the automatic alarming volume control.
音量控制电路由编程开关、电脑存储放大执行电路构成，可实现报警音量自动控制；
The volume control circuit is composed of a programming switch and a computer storing magnifying executive circuit, and can realize the automatic alarming volume control.
音量控制电路由编程开关、电脑存储放大执行电路构成，可实现报警音量自动控制；
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