impact velocity的用法和样例：
例句
- The performance of abrasive waterjet depends on the impact velocity of abrasive.
磨料水射流的性能主要取决于磨料颗粒的冲击速度。 - For a impact process with a normal impact velocity, the control equation for RKPM was deduced based on a small strain and incremental elasto-plastic constitutive law.
针对冲击速度较低的情况，假设冲击过程为小应变，并引入弹塑性增量本构关系，推导出冲击过程的再生核质点法计算控制方程。
