AO

AO Atelosteogenesis 骨发育不全症

ao aortic root 主动脉根

AO Air Operation 空中作战

AO Advisory Opinion 顾问意见

AO Amphibious Operation 两栖作战

AO Atomic Oxygen 原子氧

AO Administrative Order 行政命令

AO Application Original 应用始发

AO Anodal Opening [医] 阳极断电

AO Account Of 记帐

AO Age Old adj. 古老的(久远的)

AO Atomic Operation 原子操作

AO Assembly Order [经] 装配通知单

AO Operational Availability 工作可用性

AO Abnormal Occurrence 异常事件

AO Answers Only (educational testing) 答案只有(教育测试)

AO Anarchy-Online (PC MMORPG) Anarchy-Online(PC游戏)

AO Association Orukutuku 协会Orukutuku

AO Apostolic Oblates Oblates来

AO Assignment Officer 作业军官