Ruby on RailsRoR程序设计语言 Returned or Refunded返回或者退还 Range Only Radar测距雷达 Record of Reference (Intel)记录的参考(英特尔) Registry of Resources注册表的资源 Rise of Rome (Microsoft supplement to Age of Empires game)罗马崛起(微软补充到帝国时代游戏) Radiological Occurrence Reporting辐射发生的报告 Reach Out and Read (national pediatric literacy program)伸出你的手和阅读(全国儿科识字计画) Room Over Room (game engines)在房间的房间(游戏引擎) Rate Of Return投资收入率 Rotate Right右旋90度 Rate of Rise升压速度 Right of Rescission解约权 Rules of the Road名词rule of the road的复数形式 Retinoic Acid Receptor视黄酸受体