英语语法分析

Different polyamides were synthesized by mixing dibasic acids and diamines.

不同聚酰胺由混合二元酸和二元胺而合成。

The two most important synthetic polyamides are the urea-formaldehyde resins and the various forms of nylon.

两种最重要的合成聚酰胺是脲甲醛树脂和各种形式的尼龙。

A group of polyamides formed by the condensation between an amino group of one molecule and a carboxylic acid group of another.

一类由一个分子的氨基与另一个分子的羧酸基之间，缩合而生成的聚酰胺。