... closed circuit breathing apparatus 闭路式呼吸器 closed circuit fire alarm system 闭路火灾报警系统 closed circuit TV 闭路电视 ...
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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。
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