Signal Related Information (Signals Intelligence)信号相关信息(信号情报) Supplier Registration Information供应商的注册信息 Space Research Institute太空研究所 Soils Research Institute (Ghana)土壤研究所(加纳) Scripps Research Institute斯克里普斯研究所 Scientific Research Institute (Menlo Park, CA)科学研究所(门洛帕克市CA) Silsoe Research Institute (UK)Silsoe研究所(英国) Self-Referencing Interferometer这种干涉仪 Sensory Research Institute感觉研究所 Sacrum Romanum Imperium (Latin: Sacred Roman Empire, codices and manuscripts)Romanum荐骨(拉丁文:神圣罗马帝国统治帝国,地府、手稿) System Reliability Institute系统的可靠性 Software Risk Item (software quality assurance)软件风险项目(软件质量保证) Socially Responsible Investing社会责任投资 Student Radio Initiative学生无线电主动权 Solar Reflectance Index太阳能反射率的索引