opa

OPA Office of Public Assistance 公共援助

OPA Oklahoma Press Association 俄克拉何马州报业协会

OPA Office of Policy Analysis 办公室的政策分析

OPA Oferta Publica de Adquisicion (Spanish) Oferta Publica德Adquisicion(西班牙)

OPA Ouptut and Performance Analysis Ouptut与性能分析

OPA Out of Place Artifact 不合时宜的神器

OPA Offerta Pubblica Di Acquisto (Italian) Offerta Pubblica迪Acquisto(意大利)

OPA Overarching Partnering Agreement 合作协议的首要

OPA Oriented Polyamide 导向聚酰胺

OPA Offense Per Acre (gaming) 每英亩(游戏的进攻)

OPA Officer Personnel Act 军官人员的行为

OPA Oferta PÚblica de AdquisiciÓn (de Acciones) Oferta PÚblica de AdquisiciÓn (de Acciones)

OPA Office of Professional Attachment 办公室的专业的附件

OPA Ontario Prospectors Association 安大略淘金者协会

OPA Office of Professional Accountability (Seattle Police Department) 办公室的专业责任(西雅图警察部门)

OPA Office of Program Appraisal 办公室的项目评估

OPA Oregon Paralegal Association 俄勒冈州的助手协会

OPA Offre Publique d'Achat Offre Publique d 'Achat

OPA Orthopedic Professional Association (Gilford, New Hampshire) Gilford骨科专业协会,新汉普郡

OPA Operator Panel Assembly 操作面板组装