The relation between pore structure and permeability of nonwoven filtration materials was described.
研究了非织造过滤材料的孔隙结构与透气性之间的关系。
The disadvantage of API filtration test to evaluate mud cake quality is analyzed. A method, taking mud cake strength, permeability and thickness as main evaluation factors is introduced.
分析了API滤失试验的缺点和确定泥饼质量的关键因素，介绍了用泥饼强度、泥饼渗透率和泥饼厚度评价泥饼质量的试验方法。
Filtration media is required to have suitable pore size, pore size distribution, pore volume, pore surface area and permeability for performing satisfactorily in applications.
为使过滤材料在使用中达到令人满意的性能，要求过滤介质具有适宜的孔径尺寸、孔径分布、孔体积、孔表面积及渗透性。
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