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。
Increasing speeds above Mach 1.3 results in only small changes in shock wave strength.
飞行高度决定了冲击波到达地面所需要行进的距离，它对冲击波强度的影响是最大的。
Altitude determines the distance shock waves travel before reaching the ground, and this has the most significant effect on intensity.
一些飞行动作——拉升、加速和S型转弯——会增大冲击波的强度。
Some maneuvers — pushovers, acceleration and "s" turns — can amplify the intensity of the shock wave.
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