... 火灾探测器:fire detector 火灾探测和灭火装置:fire detecting and extinguishing apparatus 火灾探测覆盖范围:fire detection coverage ...
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...amper 防火风门 fire detecting and extinguishing apparatus 火警探测及灭火装置 fire detecting and extinguishing apparatus 火警指示及灭火装置 ..
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