rpm

• 表示发动机或电机每分钟完成完整转数的缩写，用于衡量其转速或性能。

An abbreviation referring to the number of complete rotations a motor or engine makes in one minute, used to measure its speed or performance.

1. Revolutions Per MinuteB2formaltechnical

   A unit of measurement for the rotational speed of a mechanical component, such as an engine or a disk.

   每分钟转数

   • The car engine idles at about 800 rpm.
   • The hard drive spins at 7200 rpm.
   • The technician checked the motor's rpm with a tachometer.

   同义词revolutions per minute