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rpm

abbreviation
/ˌɑː piː ˈem/
/ˌɑːr piː ˈem/
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  1. revolutions per minute每分钟转数(全写为 revolutions per minute)
    (a measurement of the speed of an engine, a computer hard drive, etc.)
    Topics Maths and measurementc2
rpm
Units for measuring speed of movement: acceleration, knot, kph...

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