入耳式耳机可能比音乐播放器本身更贵，但是也并没有威慑到音乐迷。
In-ear phones can cost more than the music player itself - but that's no deterrent to music fans.
红外线现场防盗报警器由红外探测电路及报警电路组成，是一种实用的自卫队性威慑报警工具。
The infrared anti-theft alarm, consisting of an infrared detection circuit and an alarm circuit, is a practical self-defense deterrence warning tool.
如果控制器接了报警输出及消防联动扩展板，还可以现场驱动报警器鸣叫，威慑犯罪人员和提醒保安赶来。
If controller is linked with alarm output and network fire control expansion board, it can also drive alarm annunciator calling to deter crime and warn the security guard.
如果控制器接了报警输出及消防联动扩展板，还可以现场驱动报警器鸣叫，威慑犯罪人员和提醒保安赶来。
If controller is linked with alarm output and network fire control expansion board, it can also drive alarm annunciator calling to deter crime and warn the security guard.
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