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Mach

1 ENTRIES FOUND:
Mach /ˈmɑːk/ Brit /ˈmæk/ noun
Mach
/ˈmɑːk/ Brit /ˈmæk/
noun
Learner's definition of MACH
[noncount] technical
used to indicate the high speed of something (such as an airplane) by comparing it to the speed of sound马赫

mach

1 of 2

abbreviation

Mach

2 of 2

noun

: a usually high speed expressed by a Mach number
an airplane flying at Mach 2

Word History

Etymology

Noun

Mach number

First Known Use

Noun

1946, in the meaning defined above

Time Traveler
The first known use of mach was in 1946

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