Auxiliary Pump Drive Assembly辅助泵传动机组 Alaska Public Defender Agency阿拉斯加的公众辩护人代理 Arizona Public Defender Association亚利桑那州的公立后卫协会 Atomic Power Development Associates原子能的发展伙伴 Apple Programmers and Developers Association苹果电脑程序员和开发商协会 Androgynous Peripheral Docking Assembly (NASA)美国国家航空和宇宙航行局的中性周边对接组装() Afram Plains District Assembly (Africa)Afram平原地区讲习会议(非洲) American Parts Distributors Association经销商协会。美国部分 Appliance Parts Distributors Association, Inc经销商协会电器部件 Atomic Power Development Association原子能发展协会 American Parkinson's Disease Association美国帕金森氏症协会 American Parkinson Disease Association美国帕金森(氏)病协会 American Power Dispatchers Association美国电力调度程序协会 American Parliamentary Debate Association美国的国会辩论协会 Asian Population and Development Association亚洲人口与发展协会