RMSabbr.铁路邮政服务 (=Railway Mail Service)abbr.记录管理系统 (=Record Management System)RMS converting真有效值转换rms granularity均方根粒度RMS measurement真有效值测量rms percent error均方根百分误差rms ripple factor均方根纹波因数rmspulse amplitude[电] 均方根脉冲幅度RMS current method均方根电流法rms pulse amplitude均方根脉冲幅度rms simulation error均方根模拟误差rms prediction error均方根预测误差