Mach例句
The hot air permitted higher speeds before the critical
Mach number was exceeded.
热空气可使之在超过临界马赫数之前达到更快的速度。
The aim is to fly at about
Mach 2, twice the speed of sound.
目标是以大约2马赫的速度飞行，也就是音速的两倍。
Empirical results are needed in the transonic
Mach regime.
在跨音速马赫数范围内需要经验结果.