The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.

通过对其理分析,选乙氯作、二氯甲烷作溶,测定含环氧基聚酯的羟值。

In this paper,we studied the law of alcoholization and acetification of apple vinegar which was produced with fast liauid-state fermentation,using Fusi apple as raw material.

以富士苹果为料,采液态法生产果醋,探讨其酒和醋酸规律。