英语词汇Mach number怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	Mach number
释义	Mach number 也作 mach number AHD[mäk] D.J.[mɑːk]K.K.[mɑk]n.（名词）abbr. M【缩写】 The ratio of the speed of an object to the speed of sound in the surrounding medium. For example, an aircraft moving twice as fast as the speed of sound is said to be traveling at Mach 2.马赫数：物体的速度与在周围媒体中声音的速度之比率。例如，飞机以两倍声速的速度飞行称之为以2马赫的速度飞行 Etymology语源 After Ernst Mach 源自厄恩斯特 Mach
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