The semi-empirical formula for the pressure drop during the nonstationary filtration of pleated air cleaner could be used for the prediction of useful time about the pleated air cleaner.
另外,褶状空气滤清器非稳态过滤阻力的半经验计算公式也为空气滤清器使用寿命的预测提供一定的参考。
参考来源 - 褶状空气滤清器过滤阻力特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
投加混凝剂会大大降低膜过滤阻力。
The addition of coagulant can reduce resistance in membrane filtration greatly.
结果：膜孔径和膜材料对过滤阻力及其分布有影响。
RESULTS: the pore size and materials of membrane affected the total filtration resistance and its distribution in clarification.
膜过滤阻力分布测试结果表明滤饼层阻力是主要阻力。
The results showed that cake layer resistance was the major resistance.
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