segment structure

• 段结构

segment structure的用法和样例：

例句

1. By intercalating chain-extender, the self-emulsifying anionic waterborne polyurethane emulsions which have the block structure have been prepared.
   通过自乳化聚合引入低分子扩链剂制得具有嵌段结构的阴离子型水性聚氨酯乳液。