rpm
US /ˌɑːr.piːˈem/
UK /ˌɑː.piːˈem/
缩写
转/分钟, 每分钟转数
revolutions per minute: a measure of the speed at which something is rotating
示例:
•
The engine was running at 5000 rpm.
发动机以5000转/分钟的速度运转。
•
The record player spins at 33 rpm.
唱机以33转/分钟的速度旋转。