mmabbr.毫米(=millimeter)MMSI水上移动业务标识码MMRBabbr.=Master Material Review Board；MOS Medical Retention Board；医疗军职专业人员延长服役委员会MMCM微波多芯片组件MMAN硝酸甲胺MMAD=Mass Median Aerodynamic Diameter 质量中质空气流动力学直径mmmmint.嗯；呣MMSG彩信网关MMIOn.多媒体输入/输出MMCSSenior Chief Machinist's Mate 机械二级军士长MMPs金属蛋白酶