ACabbr.(=alternating current)交流电abbr.(=actinium )元素锕abbr.(=air-conditioning )空气调节Acaso阿卡索Acala[植]阿卡拉Acava阿卡瓦acalo氯苯丁醇, 对氯苯戊二醇acies[拉]缘, 边缘,棱角Acuffn.阿卡夫Acaei阿卡埃Acuyo阿库约acureadj.锐的；尖的adj.锐角的；剧烈的；严重的；厉害的；急剧的adj.高音的ACAST=Advisory Committee on the Applications of Science and Technology (联合国)科学技术应用咨询委员会