用另一句话说：马赫数是气体的有序运动和分子无规则热运动的程度对比的度量。
In other words, the Mach number is a measure of the directed motion of the gas compared with the random thermal motion of the molecules.
用另一句话说：马赫数是气体的有序运动和分子无规则热运动的程度对比的度量。
In other words, the Mach number is a measure of the directed motion of the gas compared with the random thermal motion of the molecules.
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