Pattern Information Processing System模式信息处理系统, 图像信息处理系统 Prime Item Product Specification主要项目产品规格 Parallel Information Processing System并行信息处理系统 Precise Ion Polishing System离子抛光系统 The Programme for International Pynchon Studies这个计划,为国际Pynchon研究 Potomac Institute for Policy Studies (Arlington, VA, USA)朝鲜的政策研究学院(阿林顿国家公墓,VA,美国) Polar Ice Prediction System极地冰预报系统 Packetstar Internet Protocol Services (Lucent)Packetstar互联网协议服务(8) Personnel Investigations Processing System调查人员处理系统 Performance Indicators for Primary Schools (UK)绩效指标为小学(英国) Private Investment Profit System私人投资利润系统 Personnel Investigation Processing System调查人员处理系统 Program In Population Studies在人口研究计画 Performance Information Procurement System采购制度绩效信息 Pre-Incident Planning SystemPre-Incident规划体系