oa

OA Open Architecture 开放架构

OA Office Automation 办公自动化

OA Over Aged 在年龄

OA Out of Action 停止射击，停止照射；发生故障

OA Osteoarthritis 骨关节炎

OA Overall adv. 总的来说, 全部地

OA open account 赊帐、往来帐

OA Operations Analysis 操作分析

OA Office Action [法] 审定通知程序, 审定通知行为

OA Omni Antenna 全向天线

OA Office Automatization 办公自动化

OA Obligation Authority （负担）债务的权限

OA Office Address 办公地址

OA One Adder 加1加法器

OA Old Age 老年

OA Official Assignee 法定受让人

OA Optical Amplifier 光学放大器

OA on Alert 戒备

OA Output Axis 输出轴

OA Old Account 旧帐（户）