crystallisation

Crystallisation is used industrially to purify substances by exploiting differences in solubility at varying temperatures.工业上利用结晶来纯化物质，这是通过利用不同温度下溶解度的差异来实现的。

The crystallisation of the policy debate around two opposing camps made compromise increasingly difficult.政策辩论逐渐形成两个对立阵营，使得妥协变得越来越困难。