Araxn.阿拉克斯ARAn.[天]天坛星座abbr.机载雷达附件（=Airborne Radar Attachment）Arakcheev阿拉克切耶夫Aracytine阿糖胞苷, 阿糖胞嘧啶, 胞嘧啶阿拉伯糖苷[抗代谢抗肿瘤药]Arandjija阿兰吉娅Aramendia阿拉门迪亚arachnida蛛形纲Arahuetes阿拉韦特斯Araneidae园蛛科Arakelian阿拉克良Aranowitz阿拉诺维茨Arachnerdn.网迷