Os

OS Operating System 操作系统

OS Old School 守旧派

OS Old Saxon 古撒克逊语

OS Oculus Sinister (Latin: Left Eye) Oculus阴险的拉丁美洲:左眼

OS Oh Shoot (polite form) 哦,射击(彬彬有礼的形式)

OS Open Source 开放原始码

OS Osmium 锇（化学元素）

OS Overall Survival 总生存时间

OS Out of Stock 无现货

OS Oxygen Sensor 氧传感器

OS Online Services 上网服务

OS Orthopterists' Society 社会Orthopterists '

OS on season 旺季

OS open sprinkler 开式洒水喷头

OS Out-of-Service 停止运行

OS Operator Station 操作员站

OS Operating Sequence 作业顺序

OS One Side 一方

OS Optical Society 光学学会

OS On Schedule 按预定时间