Imagine that you have written a perfect alarm interface, which has to wake the system only rarely, perhaps once every five minutes or so.
假设您编写了一个完美的警报接口，它很少唤醒系统，可能大约每5分钟一次。
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The monolithic computer is also provided with a voice-alarm interface.
所述单片计算机还可具有声音报警接口。
No. band Alarm interface.
带外接警号接口。
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