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建筑火灾事态的扩大,大多是因为建筑物中的那些可燃和易燃性材料造成的。因此,建筑物的防火的关键因素之一就是材料的燃烧性能和耐火极限。
Building fires have expanded largely because of the flammable and flammable materials in buildings. Therefore, one of the key factors in building fire prevention is the combustion performance and fire resistance of the material.