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Muscular Dystrophy Association肌肉营养失调学会 Monochrome Display Adapter (720 by 350 pixels; 2.06:1 aspect ratio)单色显示器适配器(720由350像素宽高比2.06:1) Minimum Descent Altitude最低下降高度 Monochrome Display Adapter单色显示适配器 Michigan Dental Association密歇根州牙科协会 Monochrome Adapter单色设备 Mutual Defense Agency共同防御局 Multi-Dimentional Analysis多维分析 Multiple Displacement Amplification多重置换扩增 Massachusetts Dietetic Association麻萨诸塞州餐饮协会 McDonnell-Douglas AircraftMcDonnell-Douglas飞机 Medical Digital Assistant (PDA for medical applications)医疗数码助理(PDA的医学应用) Moldova (ISO Country code)摩尔多瓦(ISO国家代码) Medical Dental Association医学牙科协会 Mobile Data Association移动数据关联