active surface model的用法和样例：
- Component: Pure water, Cymene, Active Surface Chemical Preparation, Anlistatig Chemical preparation etc.
- They rest on their whole active surface and practically can not stand any pressure difference action.
- According to active condition, it can be divided into active surface, dormant surface, exotic surface and defunct surface.
- Considering the die-cavity roughing being a 2.5D cutting, a novel cutting force surface model is created based on orthogonal cutting tests.