Real Estate Transaction Standard房地产交易的标准 Rocket Engine Test Stand火箭发动机测试台 Radar Extractor and Tracker System雷达萃取和跟踪系统 Regimental Enhanced Training Section强化训练团队 Remote Engagement Target System (US Marine Corps)远程接触目标系统(美国海军陆战队的) Remote Encoded Target System远程编码指标体系 Remoted Target System遥控指标体系 Remote Target System远程目标体系 Rahn-End tidal sampler拉恩-恩德潮式采样器(呼吸试验)