velocity rule的用法和样例：
例句
- The calculated three-dimensional velocity distribution of impeller discharge flow basicly meets the experiment results.
计算所得的桨叶排出流的三维速度分布与实验结果大体一致。 - The experimental results show that PAM has a great influence on the velocity distribution of swirling jet.
实验结果表明，聚合物对旋转射流的速度分布有较大影响。
