音标发音英式音标 [ˌɑː.piːˈem]美式音标 [ˌɑːr.piːˈem]英式发音 美式发音 基本解释每分钟转速，转／分（revolutions per minute的缩写）。同根派生 英英字典剑桥英英字典 abbreviation for revolutions per minute: used when stating the number of times something goes round during a minute