英语语法分析

The paper researches the concrete property effect modified by polyacrylamide.

研究了聚丙烯酰胺对混凝土性能的改性效果。

High polymers such as polyacrylamide etc. can effectively inhibit water sensitivity of clay.

聚丙烯酰胺等高聚物可有效地抑制粘土的水敏性。

It was also found that the molecular weight and the dissolubility of polyacrylamide decreased with the increase of dehydration time.

并且还发现，随着脱水时间的延长，聚丙烯酰胺的分子量和溶解性能均呈下降趋势。