Universal Pilots Application Service宇宙飞行员应用服务 Underpass (US Postal service standard street suffix)地下通道(美国邮政服务标准的街尾) UAS Performance Assessment System (formerly UAV, the unmanned community now recognizes the entire system)此系统绩效考核制度,这艘(原名UAV社区现在承认整个系统) UAV Performance Assessment System无人机性能评价体系 Unit Performance Assessment System机组性能评价体系 University Prior Approval System大学的事先批准