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单词 Mach
释义
Mach
(mɑːk )
uncountable noun
Mach is used as a unit of measurement in stating the speed of a moving object in relation to the speed of sound. For example, if an aircraft is travelling at Mach 1, it is travelling at exactly the speed of sound. [technical]
The hot air permitted higher speeds before the critical Mach number was exceeded.
The aim is to fly at about Mach 2, twice the speed of sound.
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更新时间:2024/11/15 9:55:51