The paper also state the hardware circuit principle of alarm and software design.
最后阐述了报警器的硬件电路原理及软件设计。
Back door has a five-pin tumbler system, single-circuit alarm. Child's play.
后门是五锁连环栓，单回路报警系统，小菜一碟。
The alarm which comprises a special logic circuit is arranged in a duty room.
报警器装在值班室内，它含有专用逻辑电路。
The alarm which comprises a special logic circuit is arranged in a duty room.
报警器装在值班室内，它含有专用逻辑电路。
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