当它作为过滤介质进行过滤器设计时，查不到密纹网的一个重要性能指标—孔隙率。
When the dense net was used as filter medium for filter design, the porosity, as one of the important performance levels of the dense net, could not be found.
结果表明：在雷诺数一定的情况下，增大过滤器的孔隙率，则过滤效率增加；
The results showed that the filtering efficiency was improved with the increase of filter's porosity under constant Re number and with the decrease of Re value under constant filter's porosity .
膜过滤器或“膜”的孔隙率聚合物薄膜的具体。
Membrane filters or "membranes" are polymer films with specific pore ratings.
膜过滤器或“膜”的孔隙率聚合物薄膜的具体。
Membrane filters or "membranes" are polymer films with specific pore ratings.
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