hydroxymethylation meaning in English

羟甲基化作用

Abstract : the basic synthesis process parameters of water reducing agent of melamune series was studied . the factors affecting hydroxymethylation , stlfonation , low - ph condensation , and high - ph condensation were thoroughly studied . from that , the good conditions for every stages were determined . by addition of compound additives made of some cheap components , the production cost of melamine water reducing agent was greatly decreased so that the spread and application value was increased
文摘:研究了三聚氰胺系列减水剂的基本合成工艺，考察了各种因素对羟甲基化阶段、磺化阶段、缩聚阶段的影响，确定了各阶段的最佳工艺条件，通过加入一些廉价组分制成复合型减水剂，使得三聚氰胺系列减水剂的生产成本大幅度降低，提高了产品的推广应用价值