ACNn.更改的先期通知(自动天文导航)ACabbr.(=alternating current)交流电abbr.(=actinium )元素锕abbr.(=air-conditioning )空气调节ac servomotor交僚服电动机AC deposition交流沉积AC pumped gas交流激发气体acrorhynchous具顶喙的acrosomal cap顶体acinarization腺泡化AC aging test交流老化试验acillus natto纳豆菌acini hepatis[医] 肝小叶acanthoside D五加甙 D