Increasing speeds above Mach 1.3 results in only small changes in shock wave strength.

速度升高到1.3马赫（速度单位，1马赫=音速=340.29m/s——译者注）以后，不会再对冲击波强度造成太大的影响。

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This oblique configuration redistributes the shock waves that pile up in front of a plane at Mach speeds and cause drag.

这种倾斜的外形把超音速飞行时集中在飞机前部并形成阻力的冲击波重新分布。

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Moreover, the reason that Mach 4 oblique shock wave is asymmetric is conjectured.

另外，推测了马赫数4拟似冲击波非对称的原因。

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These waves travel at the speed of sound, but when a jet travels at Mach 1 and above these waves merge into one single shock wave as they cannot get out of the way of each other quickly enough.

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