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OC Oakland City (Indiana College) 印第安纳大学的城市(奥克兰)

OC Opere Citato (Latin: In the Work Cited) Opere Citato拉丁美洲:在工作中引用

OC Officer of the Order of Canada 军官的命令

OC Open Circuit (SCUBA and electronics) 打开电路(水肺和电子)

OC Operation Context 操作语境

OC Original Character (fanfiction new, made-up character) 原来的角色(新)的差异同人

OC Office of Communications 办公室的通讯

OC Orlando Cabrera (baseball player) 奥兰多卡(棒球)

OC Oregon City (Oregon) 俄勒冈州的城市(俄勒冈州)

OC Operation Class 操作课

OC OpenCup (online tournament) OpenCup(联机比赛)

OC Officer Candidate 军官候选人

OC Outside Circumference 外圆周

OC Ordnance Controller 军械控制器

OC Order of the Carmelites (religious order) 卡的(宗教秩序)

OC Oxnard College (Oxnard, CA) 在这里大学(在这里,CA)

OC Obstetric Cholestasis 产科胆汁淤积

OC Otaku Convention (Japanese film festival) 御宅族公约》(日语电影节。)

OC Order of Canada 加拿大的订单

OC Overture Center (performing arts) 提案表演艺术中心)