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建筑防火防烟分区和建筑构造；
Structural fire precaution against smoke district and building structure;
youdao
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建筑防火是建筑防灾的一个重要分支。
The building fire prevention is a vital part of building disaster prevention.
youdao
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建筑防火是建筑防灾的一个重要分支。
The building fire prevention is a vital part of building disaster prevention.
youdao