Standard Prescriber Identification Number标准的处方识别码 Software Process Improvement Network软件过程改进网络 Scalable, Programmable, Integrated Network可扩展的、可编程的、完整的网络 Samodzielny Proprzemyslowy Instytut Naukowy (Polish: Scientific Proindustrial Independent Institute)Samodzielny Proprzemyslowy Instytut Naukowy(波兰:科学Proindustrial独立学院) Solution Provided Information Network解决方案提供信息网络 Spherical Projection Interface球形的投影的接口 Spatial Indicators (for European Nature Conservation)空间指标(欧洲自然保育) Society of Public Information Networks (Not-for-profit company of 200 UK Organisations involved in the electronic public information sector)社会的公共信息网络公司(非盈利组织参与了200英国公共信息产业电子) Searchable Physics Information Notes可查找的物理信息记录 Strategic Press Information Network新闻信息网络的战略 Sponsored Programs Information Network赞助程序信息网络 Strategic Placement of Inventory战略配售的存货 Sensor, Positioning, and Identification Network传感器、定位、识别网络 Space Intercept空间拦截 Solutions for Presenting Information on Networks在网络信息解决方案的表现