Pennsylvanian adj. Pennsylvania 的
n. Pennsylvania 人
polyvinylamine聚乙烯胺
网络短语:
cross-linked polyvinylamine 交联聚乙烯胺
polyvinylamine macromonomer 聚乙烯胺大分子单体
英语例句库
Effects of polyvinylamine prepared by basic hydrolysis of poly(N-vinylformamide) on paper strength, drainage and retention of reed pulp and wheat straw pulp were investigated. 研究了由聚N-乙烯基甲酰胺的碱性水解得到的聚乙烯胺在芦苇浆和麦草浆造纸中对纸张的增强、助滤和助留作用。