ACabbr.(=alternating current)交流电abbr.(=actinium )元素锕abbr.(=air-conditioning )空气调节acronn.铝基铜硅合金；无脊椎动物的原头区Acaii阿凯伊acale规模ACINT音像情报Acome阿科姆ACOFS助理参谋长ACAID前房相关免疫偏离aciin金合欢硷,刺槐苷acoin阿可因Acito阿奇托