Due to high crystal degree and negative surface charge of ramie fiber, the dyeing process of ramie is very difficult.
由于结晶度、表面电荷等多方面的原因，苎麻纤维染色较为困难。
As same as the conclusion of literature, the protein component in EPS could improve the negative surface charge of sludge flocs.
EPS总量高的污泥脱水性能差，EPS中蛋白质含量高的污泥其表面电荷也较高。
The acidic pH interacts with the hair's slightly negative charge to help the cuticle, the outer layer of the hair, maintain a smooth, flat surface.
酸性PH值和头发上的微量的负电荷相互作用，以此来帮助毛小皮，即头发表面的一层，保持表面光滑平整。
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