通过无线电向总部发出了警报。
布鲁斯·劳赫兰法官赞扬了那名年轻警察的勇气，该警察设法通过自己的无线电收发装置发出了警报。
Judge Bruce Laughland praised the courage of the young policeman, who managed to raise the alarm on his radio.
日本北部的大部分地区仍然没有电，因此，这个已经启动的系统是否会及时提供有用的警报，仍有待于观察。
Much of northern Japan remains without power, so it remains to be seen if the system, which was triggered, arrived in time to provide a useful warning.
此外，新款滑板车还配有无线电钥匙和警报系统。
巡查员们利用无线电扩音设备，以便警报足够大声能被人们听见，然后转移到安全的地方。
The spotters use radios to order that a loud alarm be sounded so people can move to safety.
接下来你就可以放心离开你的笔电了，那么它触发警报的条件有哪些呢？
Then you can rest assured that you leave the pen, and then trigger alerts What are the conditions?
另一个警报设备是通向污水厂的无线电。
The other warning device is a radio signal to the water plant.
烟雾警报器装了没有电的电池或是没有装电池，就如同没有装置烟雾警报器。
A smoke alarm with a dead or missing battery is the same as having no smoke alarm at all.
烟雾警报器装了没有电的电池或是没有装电池，就如同没有装置烟雾警报器。
A smoke alarm with a dead or missing battery is the same as having no smoke alarm at all.
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