Office Information System(s)办公室的信息系统(s) Operator Interface Station操作员接口站 Oh, I see喔，我知道了 Ohio Innovation Summit俄亥俄州创新峰会 Organization for Internet Safety为因特网安全组织 Ontologizing Industrial Standards (workshop)Ontologizing工业标准(车间) Office of Information Services (University of Puget Sound)办公室的信息服务(大学)看声音 Overflow Internet Services (Gold Coast, Australia)网络服务(溢,澳大利亚黄金海岸) Objective Interface Systems, Inc. (Herndon, VA)客观的界面系统公司。(Herndon,VA) Online Information System (Impress Software)网络信息系统(软件) OGE Input SimulatorOGE输入模拟器 Overbeek Information Security B.V.Overbeek信息安全 Officer Indoctrination School (US Naval Education and Training Center)美国海军军官学校(教化的教育和培训中心) Office Information System办公室信息系统 Open Interface Specification开放接口规范