Address Resolution Protocol地址转换协议 Anti-Radiation Projectile反辐射弹 Aerospace Recommended Practice航天推荐 American Registry of Pathology美国注册的病理变化 Alternative Retirement Plan可供选择的退休计划 Area Redevelopment Plan区域重建计划 Active Recording Program活动记录程序 Argonne Rector Physics阿贡反应堆物理学(美) Aromatic polyester聚芳香酯 Aerodrome Reference Point机场基准点 Automatic Receiver Program自动接收程序 Aeronautical [Aerospace] Recommended Practice航空[航天]实践推荐草案 Azimuth Reference Pulse方位基准脉冲 Advanced Re-entry Program高级再入大气层计划 Algorithm Research Panel算法的研究小组