velocity spread的用法和樣例：
例句
- The calculated three-dimensional velocity distribution of impeller discharge flow basicly meets the experiment results.
計算所得的槳葉排出流的三維速度分佈與實驗結果大體一致。 - The experimental results show that PAM has a great influence on the velocity distribution of swirling jet.
實驗結果表明，聚合物對旋轉射流的速度分佈有較大影響。
