On-Line Process Analysis (Borealis)在线过程分析(颜色) Office of Legislative Policy and Analysis办公室的立法政策和分析 Off-Line Processing Areas (NASA)美国国家航空和宇宙航行局)加工区域(网下 Office of Legislative and Public Affairs办公室的立法与公共事务 Office of Legislation and Public Administration办公室的立法与公共管理 Ontario Livestock Protective Association (Canada)安大略家畜保护协会(加拿大) Office of the Livingston Parish Assessor办公室的李文斯顿教区的评估 Oregon Livestock Producers Association俄勒冈州的家畜生产商协会 Online Payment Authorization在线付款授权书 Ore Lake Preservation Association (Michigan)密西根湖保护协会(矿) Omaha Legal Professionals Association奥马哈法律界人士协会 Odonata Libellulidae PachydiplaxLibellulidae Pachydiplax春 Olmsted Linear Park Association奥姆斯特德线性公园协会 Olmsted Linear Park Alliance奥姆斯特德线性公园的联盟