机房系统维护服务 ... 开关输入配件(手动开关、紧急断路器及倒数计时器)Input switch component (manual switch, emergency breaker and time-counter). 警报输出系统(警报、蜂鸣器、火警灯及释放灯)功能测试Output warning system (alarm, buzzer, fire light and release light) function test. 检测FM-200钢瓶及配件Inspection for FM-200 containers and accessories. ...
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