upper respiratory tract上呼吸道 untranslated region非翻译区 Unified Rear Triangle (mountain bike suspension)统一的后方三角形(山地车暂停) Universal Running Tool (subsea drilling)通用工具(水下钻井) Underwater Recovery Team水下回收队 Universal Remote Terminal普遍的远程控制 User Registration Tool用户注册的工具 Urban Terror (computer game)城市的恐惧(电脑游戏) Surat Thani, Thailand (Airport Code)Surat Thani、泰国(机场代码) Unit Recruit Training单位招聘培训 Uncertainty Reduction Theory (communicative behavior theory)减少不确定性理论(交往行为理论) Unreadable ID Tag读的ID标签 Unreal Tournament (gaming)虚幻的比赛(游戏) Uniform Rate of Tax统一的税收 Undergraduate Remote-Pilot Training (Air Force Unmanned Aerial Systems)本科Remote-Pilot训练空军实现系统