1. The dynamic analysis of pressing dehydration of the paper making felt is done to get the main factors affecting the drainability.
   对造纸毛毯压榨脱水的过程进行了动力学分析,得出了影响滤水性的影响因素。
2. Filler retention and drainability of wheat shaw pulp could be improved remarkably when PAC and PDADMAC were added as ATC before the addition of CPAM.
   用PAC和PDADMAC作为阴离子捕捉剂可显著改善麦草浆的滤水性，提高其留着率。

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