Middle-Atlantic BightMiddle-Atlantic庆 Managing Assaultive Behavior (nursing certification)管理暴力性行为(护理证书) Missile Assembly Building导弹的大楼 Multicast Address Broker多播地址的经纪人 Major Activity Budget主要活动的预算 Magyar FelsõoktatÁsi AkkreditÁciÓs BizottsÁg (Hungarian Higher Education Accreditation Committee)Magyar FelsõoktatÁsi AkkreditÁciÓs BizottsÁg (Hungarian Higher Education Accreditation Committee) Meubel- en AutobekledingsbedrijfMeubel - en Autobekledingsbedrijf Monitoring and Assessment of Biodiversity (Smithsonian Institution)监控和评估的生物(史密森尼博物馆) Mobile Floating Assault Bridge-FerryBridge-Ferry攻击移动漂浮 Montreal Association for the Blind蒙特利尔协会为盲人 Meters Above Bottom (oceanography)米底(海洋) Michigan Association of Broadcasters密西根州协会 Magazine Advertising Bureau杂志广告局 Maximum Assignable Bandwidth最大的可转让的带宽 Maine Association of Broadcasters缅因州协会