Office of Climate Observation (NOAA)办公室的气候观测(NOAA) Office of Central Operations中心操作 Operating Capital Outlay运营资本支出 Object Code Only目标代码 Oakland Civic Orchestra (Oakland, CA)奥克兰奥克兰市民乐团(CA) Oklahoma Community Orchestra俄克拉何马州社区交响乐团 Oahu Civic Orchestra (Hawaii)公民乐团(夏威夷欧胡岛) Oort Cloud Object奥尔特云的物体 Optimal Cycle Ordering最优周期订货 Overall Control Office全面控制办公室 Office, Chief Ordnance办公室,主要袭击 Office of Civilian Operations办公室的文职操作 Operating and Control Organization操作和控制的组织 Operational Contracting Officer经营承包军官 Operational Capabilities Objective运营能力的目的