For pyritecontaining unoxidized kaolinite,the selective comminution aims at liberating and separating pyrite and its interlocking minerals.

对未经氧化的含铁矿高岭岩，择性粉碎的目的解离并分铁矿及其合体。

Proteins and DNA are polymers.

蛋质和脱氧核糖核酸合体。