In case of fire, alarm bell.

如果发生火灾, 拉火警.

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After the emergency work, testing will be conducted and fire alarm bell will ring intermittently.

当紧急维修完毕后, 消防系统将重置及测试,期间消防警钟将断续地鸣响.

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After the repairing work, testing will be conducted and fire alarm bell will ring intermittently.

当维修毕后, 消防系统将重置及测试,期间消防警钟将断续地鸣响.

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