The discontinuous change in free volume will involve an abrupt change of the permeability of the breathable material layer.
所述自由体积的不连续变化会涉及所 述透气材料层的渗透性的突然变化。
We Establish regional model of the indoor fire, make hypothesis on the gas density uniformity and on discontinuous cold hot air layer and on indoor and outdoor equal etc.
建立室内火灾的区域模型，作气体浓度均匀、冷热空气层不连续、室内外等压的相关假设。
We Establish regional model of the indoor fire, make hypothesis on the gas density uniformity and on discontinuous cold hot air layer and on indoor and outdoor equal etc.
建立室内火灾的区域模型，作气体浓度均匀、冷热空气层不连续、室内外等压的相关假设。
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