所得到的经验方程可用来估算多层金属纤维滤毯的透气系数。
The obtained empirical equation can be used for evaluating the air permeability coefficient of the metal fiber filter medium with gradient pore size.
结果表明，改进后的气密层胶透气系数有所增大，但能够满足有内胎轮胎气密层的要求；
The results showed that the permeability of modified inner-liner to air increased somewhat, but still could meet the requirement of inner-liner in tube-tire;
并利用自行组装的测试设备研究了柔性石墨板密度、厚度以及空气压力差对相对透气系数的影响。
We also assemble a set of permeability testing equipment, by which we study on the effect of density, thickness and air pressure on the relative permeability.
提高烧结混合料透气性，对提高烧结机利用系数、降低烧结能耗有着重要的作用。
Increasing the ventilation of sintering mixture is very important for increasing the sinter productivity, decreasing sinter energy consumption.
整理后的织物毛羽量减小，织物变得较蓬松，悬垂系数、透气量、白度和毛效均有不同程度的改善。
After enzyme treatment, the fabric became more fluffy, the amount of fabric hairiness reduced. Drape coefficient, air permeability, whiteness and capillary effect were improved to some extent.
另外，还计算了导热系数与体积密度、显气孔率、透气度和原料等级之间的相关系数。
Correlation coefficients between the thermal conductivity and bulk density, open porosity, permeability and raw material grade was obtained respectively.
另外，还计算了导热系数与体积密度、显气孔率、透气度和原料等级之间的相关系数。
Correlation coefficients between the thermal conductivity and bulk density, open porosity, permeability and raw material grade was obtained respectively.
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