英语语法分析

A new kind of phase transfer catalyst of phosphotungstate was synthesized by a new way in this paper.

采用新的合成方法，合成了一种新型磷钨杂多酸盐相转移催化剂，研究了它在不同合成条件下的产率。

A novel preparation method to synthesize DEDB by using aluminium phosphotungstate catalyst was developed.

开发了一种用磷钨酸铝催化合成二甘醇二苯甲酸酯(DEDB)的新方法。