Radio Frequency Interference射频接口 Request For Information信息请求 Radio Frequency Investigation无线电频率的调查 Radio France Internationale法国国际广播电台 (法语缩写） Read Frequency Input读频输入 Road Features Inventory路特征清单 Rete Ferroviaria Italiana (Italian train network)Rete Ferroviaria Italiana(意大利训练网络) Radio Frequency Identification (usually seen as RFID)无线射频识别(RFID)通常视为 Representative of a Foreign Interest最具代表性的一门不感兴趣 Radar Frequency Interferometer (AN/APR-48A radar)雷达频率干涉仪(一种/ APR-48A雷达) Remote File Inquiry远程文件的询价,则甚为感谢 Rehabilitation Foundation, Inc.康复的基础上,公司 Ready For Issue准备好问题 Resource File Index资源文件的索引 Ready For Installation准备好安装