Office of Primary Responsibility办公室的首要责任 Operatorn. 操作员, 管理者, 技工, 报务员 Organization of Primary Responsibility组织的主要责任 Organizational Process Record组织过程的记录 Overall Project Review整个项目的评论 Operational Project Requirements经营计划的要求 Organization of the People of Rodrigues (Mauritius)组织的人(毛里求斯罗德里格斯) Office of Public Relations (Centers for Medicare & Medicaid Services)办公室的公共关系(医疗保险和医疗补助服务) Office of Professional Responsibility办公室的专业责任 Officer Performance Report警官表现的报告 Operationsoperation的复数形式 Optical Pattern Recognition光模式识别 Operatevt. 起作用, 动手术 Outside Plant Repeater (Hekimian)(Hekimian中继外植物) Ongoing Precision Recovery持续的精度恢复