原淀粉与聚乙烯基胺的混合糊液对再生浆具有显著的纸力增强、助滤和助留效果。
The mixtures of the starch and polyvinylamine showed significant effects on the improvement of paper strength, draining and retention of the pulp.
本文叙述了聚醋酸乙烯酯对瓦楞原纸强度影响的试验和分析。
Test and analysis were made to investigate the influences of polyvinyl acetate on the strength of corrugated paper.
解决了原分布器的漏液问题，从而使ET4 0 5塔的乙烯收率得到了提高。
The expand teflon solved the leakage of former distributor and the ethylene product receiving rate of tower ET405 had been much increased.
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