英语语法分析

The change of related groups in FTIR spectrum and the change of surface on the SEM pictures indicated that the etherification and amination reactions took place.

红外光谱图中相应基团的变化和扫描电镜图中显示的表面形态变化说明可能发生了醚化和胺化的改性反应。

In this study trimethyl amine was reclaimed from amination wastewater by using 001 hydrogenous strong-acid ion exchange resin. The recovery ratio is more than 90%.

本文采用001氢型强酸性阳离子交换树脂从胺化废水中回收三甲胺，回收率大于90%。

A cationic protein filling agent has been prepared from collagen hydrolysate by amidation with ethanolamine and amination with diethanolamine-formaldehyde condensate.

采用乙醇胺对胶原水解物酰胺化，采用二乙醇胺与甲醛的缩合物胺化，制得了阳离子蛋白填充剂。