Chitosan is applied extensively as flocculation agent of wastewater, reinforcing agent, retention aid, surface modification agent, additive in beating process in papermaking industry.

壳聚糖及其衍生物在造纸工业中可作为纸张增强剂、助留助滤剂、表面处理剂、打浆助剂和造纸废水絮凝剂等。

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The research progress and related applying technology of retention aid systems for high speed paper machine were reviewed.

综述了高速纸机用助留体系的研究进展及相关应用技术。

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The paper has discussed the method of synthesis of cationic-type polyacrylamide and it's application as flocculant, retention aid, drainage aid and strength aid.

本文介绍了阳离子型聚丙烯酰胺的制备方法及其在造纸工业中作为助留助滤剂、增强剂、絮凝剂的作用机理和应用条件。

youdao

Labour's Lord Beecham supported calls for the retention of legal aid in clinical negligence cases, arguing it was wrong to "dismantle the machinery" that provided access to justice in this area.

BBC: Peers warn against medical negligence legal aid cuts

Britain's plan to hike social taxes rather than use a market approach to medical insurance, along with other planned changes, won't aid corporate retention or invite foreign investment.

FORBES: Magazine Article

This in turn gives individualized organizations the chance to be much more selective in hiring (larger labor pool) and it can aid in retention, a key to sustainable effectiveness and long-term success.

FORBES: Sustainable Management: Focus on Individuals, Not Generations