sound velocity

• 声速

sound velocity的用法和样例：

例句

1. Mach two equals twice the speed of sound.
   二马赫相当于声速的二倍。
2. "A sweet temper" is a figurative expression, but "sweet coffee" is not.
   "甜蜜的性情"是个比喻的说法，而"甜咖啡"则不是。
3. The plane is flying at the velocity of sound.
   飞机以音速飞行。
4. As the velocity in the nozzle throat is sonic, the effect must be transmitted upstream through the boundary layer.
   当喷管喉部达到音速时，这种影响一定是通过附面层向上传播而引起的。