中文: abbr. railway bill 铁路运单; rear wheel brake 后轮制动器; Rand Water Board 兰德水会; Royal Winnipeg Ballet 皇家温尼伯湖芭蕾舞
中文: abbr. read, write, initial 读; radar warning installation 雷达警报装置; real world interval 真实的世界间隔; remote weight indicator 远程重量指示器
中文: abbr. read-write operation 读写操作; right-wrong-omits counter 正确-错误-遗漏计数器; right/wrong omits 正确/错误遗漏
中文: abbr. reaction wheel system 反作用轮系统; range-while-search (radar) 边搜索边测距(雷达); reaction wheel scanner 反作用轮扫描仪; release with services 释放服务