OA
Out of Action
OutofAction
OAS
Organization of American States
美洲国家组织
OAU
Organization of African Unity
OrganizationofAfricanUnit…
OBE
Officer of the Order of the British Empire
大英帝国勋章
OC
Officer Commanding
OfficerCommanding
OCONUS
Outside Continental United States
美国本土之外
OCS
Officer Candidate School
军官候选人学校
OD
Operations Division
OperationsDivision
OD
Officer of the Day
OfficeroftheDay
oda
Office of Disarmament Affairs
OfficeofDisarmamentAffair…
ODM
Office of Defense Mobilization
国防动员办公室
OEC
Office of Energy Conservation
节能办公室
OEP
Office of Emergency Preparedness
应急准备办公室
OG
Officer of the Guard
OfficeroftheGuard
OGE
Office of Government Ethics
政府道德办公室
OHCHR
Office of the High Commissioner for Human Rights
OfficeoftheHighCommission…
OIC
Organization of the Islamic Conference
OrganizationoftheIslamicC…
OM
member of the Order of Merit
memberoftheOrderofMerit
OMPER
Office of Manpower Policy Evaluation and Research
人力政策评估与研究办公室
ONI
Office of Naval Intelligence
海军情报局
ONR
Office of Naval Research
海军研究办公室
OP
Observation Post
ObservationPost
OPEC
Organization of the Petroleum Exporting Countries
石油输出国组织
OR
Out of Range
OutofRange
OS
Observation Station
ObservationStation
OSCE
Organization for Security and Cooperation in European
OrganizationforSecurityan…