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

1.通过对其酰化原理分析,酰氯作酰化、二氯甲烷作酰化溶,测定含环氧基聚酯的羟值。

2.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.

2.以富士原料,采快速液态法生产醋,探讨其酒化和醋酸化规律。