Propagating speed

• 传播速度

Propagating speed的用法和样例：

例句

1. It can reflect the flame propagation speed and evaluate the explosion intension.
   计算出的分形维数是衡量湍流火焰传播速度以及爆炸强度的有效参数。
2. So fast does sound travel that it is difficult for us to imagine its speed.
   声音的传播速度快得使我们难以想象。