point contact的用法和样例：
例句
- This paper presents a theoretical model for the coefficient of restitution calculation of point impact.
摘要建立了一种计算点接触正碰撞恢复系数的理论模型。 - Secondly, the three nodes contact element obeying the elastic Coulomb friction constitutive model is presented.
并介绍了服从弹性库仑摩擦本构模型的三结点接触单元。 - The airlift contact oxidation process is the combination of airlift technology with contact oxidation method.
将气提技术与接触氧化法相结合而形成气提式接触氧化工艺。
