当结构单元与单体相比，除了电子结构变化外，其原子种类和各种原子的个数完全相同时，结构单元又称为单体单元。
链中的折叠仅使用3或4个具有 gauche 构象键的单体单元完成。
The fold in the chain is completed using only 3 or 4 monomer units with bonds in the gauche conformation.
解聚一种导致聚合物链断裂生成单体单元的化学反应。
The chemical reaction which results in a polymer chain being broken up into monomer units.
只有在同级子目中的聚合物共聚单体单元才可以进行比较。
Only the constituent comonomer units of the polymers in the series of subheadings under consideration are to be compared.
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