engine fire switch 发电机灭火电门
fire lift switch 消防电梯开关
fire detector switch 火警探测器开关
fire lift priority switch 消防电梯优先开关
engine fire shut-off switch 发电机灭火开关电门
fire extinguisher transfer switch 灭火器转换开关
fire detection system test switch 火警探测系统试验开关
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