防排烟规范中有一条,排烟口和补风口的水平间距要达到20m,这是限制于一个防火分区吗? 知乎 Template




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tomski防排烟规范中有一条,排烟口和补风口的水平间距要达到20m,这是限制于一个防火分区吗? 知乎 coloring