Araxn.阿拉克斯ARAn.[天]天坛星座abbr.机载雷达附件（=Airborne Radar Attachment）Arachelian阿拉凯利安aramayoite硫铋锑银矿arakawaite磷锌铜矿Araliaceae[医] 五加科arachidium蛛网器arasaponin五加皂甙, 三七皂甙Aragozzini阿拉戈齐尼arachnidaen.蜘蛛纲；蛛形纲Araucaniann.阿洛柯人adj.阿洛柯人的; 阿洛柯语的arachnopia蛛软膜