Araxn.阿拉克斯ARAn.[天]天坛星座abbr.机载雷达附件（=Airborne Radar Attachment）Aracanidaen.六棱箱鲀科Arangueren阿朗格伦Arazominch阿拉佐明奇arachisoil花生油Aranzueque阿兰苏埃克araeometern.液体比重计(比浮计)Araneoidea园蛛总科Arashidani岚谷(姓,日本)Ara's testarachidate廿(烷)酸