Rpm
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定义
RPM (revolutions per minute): 每分钟转速(转/分钟)
示例
- "a 7-inch disc plays at the speed of 45 rpm (revolutions per minute);"
- "a 7-inch disc plays at the speed of 45 rpm (revolutions per minute);"
- "Answers: an LP is a long playing record (size 12 inches, played at 33⅓ rpm);"
