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It can be used as the retention drainage aid, strength agent and flocculant agent. 作为造纸助剂聚丙烯酰胺可用作助留助滤剂、增强剂、分散剂及絮凝剂等。
The effect of macromolecule amphoteric polyacryamide used as retention and drainage aids in nonwood fiber is studied. 在非木材草类纤维中加入两性高分子聚丙烯酰胺助留、助滤剂,对其效果进行了探索。
The optimum dosage of three retention and drainage aids was determined and their effects of improving printability of newsprint were compared. 确定了较合适的助留助滤剂用量，并比较了3种助留助滤体系对改善新闻纸印刷性能的效果。
The two-component retention and drainage aids systems with different molecular weight of PEO and different ratio of PFR to PEO were used in wood-containing pulp. 本文探讨了不同分子量的PEO和不同的PEO/PFR配比在含机木浆的新闻纸抄造中,对抄造性能和纸页物理性能的影响。
Guar gum derivatives are used as retention and drainage aids, as well as dry strength agent in the papermaking industry.The potential application in the future is pointed out. 论述了瓜儿胶衍生物在造纸湿部作为助留助滤剂、增强剂的应用，并指出今后的发展前景。
Guar gum derivatives are used as retention and drainage aids,as well as dry strength agent in the papermaking industry.The potential application in the future is pointed out. 论述了瓜儿胶衍生物在造纸湿部作为助留助滤剂、增强剂的应用,并指出今后的发展前景。
CPAM/Bentonite Micropartical Retention and Drainage Aid System CPAM/膨润土微粒助留助滤体系的应用研究
Application of Particle Retention and Drainage Aid System in PM3 微粒助留助滤系统在PM3的应用
THE STUDY ON THE APPLICATION OF THE XQ-AR RETENTION DRAINAGE AID XQ-AR系列造纸助留助滤剂的应用研究
It means to give the most-needed and timely aid. 它的意思是给予最需要的及时的帮助。
He came to look at the drainage. 他是来检查排水设备的。
The drainage system has been aged. 排水系统已经老化了。
I'm collecting money in aid of starving children. 为帮助饥饿的孩子们，我正在搞募捐。
Study on New Type of Microparticle Retention and Drainage Aid System 新型微粒助留助滤剂的研发和应用机理研究
Retention and Drainage Aid Effect of Cationic Polyacrylamide/Bentonite System 阳离子聚丙烯酰胺/膨润土体系的助留助滤性能
She used slides as a teaching aid. 她用幻灯片作教学工具。
They offer financial aid with no strings attached. 他们无条件提供财务援助。
My friends bailed me out with economic aid. 我的朋友们从经济上帮助我使我脱离困境。
The collection is in aid of the blind. 这笔募集的捐款是用来救济盲人的。
He solicited aid from his close friends. 他请求挚友相助。