periodic copolymer的用法和樣例：
例句
- It is obvious that there is an optimum chain length of diblock copolymer for minimizing the mean domain size.
所以，加入等量的嵌段共聚物，存在一個最佳的鏈長使體系的相區尺寸最小。 - The invention relates to a drug delivery system of nanometer liver targeting amphiphilic block copolymer and a preparation method thereof.
本發明涉及一種納米肝靶向兩親性嵌段共聚物給葯系統及製備方法。
