Science and Engineering Research Semester科学和工程研究的学期 State Employees’ Retirement System (Commonwealth of Pennsylvania) Systems and Electronic Resources Service (Oxford University library IT service)系统和电子资源服务(牛津大学图书馆IT服务) Submarine Escape and Rescue Service潜水艇和救援服务。逃避 Spacecraft Emergency Response System宇宙飞船应急响应系统 Safety Event Reporting System (hospitals)安全事件报告系统(医院) Software Engineering Release System软件工程的发布制度 Surface-Enhanced Raman Spectroscopy顾仁光谱 School Employees Retirement System学校员工退休制度 Severe Errored Seconds (AT&T)严重的Errored秒(AT&T) Special Emergency Radio Service (FCC)特别紧急无线电服务(FCC) Space Erectable Radiator System空间Erectable散热系统 State Endorsed Retirement System国家支持退休制度 Surfaced Enhanced Raman Spectroscopy增强喇曼光谱浮出水面