Central air conditioner, automatic fire alarm, closed circuit TV watching system, communication network, public broadcasting and cable TV are all available in the exhibition hall.
展览大厅配有中央空调、自动火警、闭路电视、通讯网络、广播和有线电视。
Wired for Cable and Category 6 phone and alarm system.
有线电缆和6类的电话和报警系统。
It shows the logic diagram of alarm design by analyzing reasons of current spillage and cable malfunction.
通过分析产生电流越限和电缆故障的各种原因，画出报警设计的逻辑图。
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