常見(jiàn)例句Keywords Polyvinyl Chloride-Polyethylene Polyamin resin;Phase transfter catalysis;benzalacetone;synthesis; 聚氯乙烯多乙烯多胺樹(shù)脂;相轉(zhuǎn)移催化;芐叉丙酮;合成; 返回 Polyaminating