limit of fire resistance
英
美
- 耐火极限
双语例句
- The coatings film will be dilatated when contacted to fire, forming a high dense and microporous fire proofing layer to prolong the fire retardant limit of steel structures.
由该涂料制得的涂层遇火发泡膨胀，形成具有一定厚度的密实微孔状阻燃层，从而提高了钢结构的耐火极限。
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