护林员按下一个按钮，把步话机放回他的腰带。
The ranger pressed a button and placed the walkie-talkie back on his belt.
电话机上的自动拨号按钮提供用于外部号码、内部通信号码或功能代码的一次拨号。
An Autodial button on a phone provides one-touch dialing of outside Numbers, intercom Numbers, or feature codes.
高层中的电梯内设对讲话机，设置紧急呼叫按钮和门磁控制开关，安装挂墙明装红外幕帘探测器；
In the high-level elevator supposes to speaks the telephone, the establishment emergency call button, the installment pyroscan;
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