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Mach number [Mach numbers]▼◼◼◼noun[UK: ˈmɑːk.ˌnʌm.bə] [US: ˈmɑːk.ˌnʌm.bə]
machmeter▼noun[UK: mˈatʃmiːtə] [US: mˈætʃmiːɾɚ]
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