phase behaviour of greases

例句：

1. 1. The phase behaviour of the material changes with temperature.
   该材料的相变行为随温度变化而变化。
2. 2. Understanding the phase behaviour of a material is crucial for its application.
   理解材料的相变行为对于其应用至关重要。
3. 3. In the phase behaviour diagram, the solid-liquid equilibrium line separates the two phases.
   在相变行为图上，固液平衡线将两个相分离开来。