MCabbr.司仪；节目主持人(=Master of Ceremonies)MCS计算机科学硕士MCW=Modulated Continuous Waves 被调制的等幅波, 已调制连续波MCP=Magnetic Compass Pilot 磁罗经导航MCB内存控制块MCYabbr.[军] Mobile Construction Yard 机动工程车mcg微克,微公分MCDnum.罗马数字 1400MCXO微机温度补偿振荡器MCPA=2-methyl-4-chloro-phenoxyacetic acid 2-甲-4-氯苯氧基乙酸(农药)MCMN(=1-methyl-2-((carbamoyloxy)methyl)-5-nitroimidazole, ronidazole-antimicrobial) 1-甲基-2-氨甲酰基甲基-5-硝基咪唑, 洛硝哒唑