Products & Services产品及服务 Point and Shoot (camera)点和射击(相机) Pre-1954 Standard (vs. Widescreen)Pre-1954标准。宽银幕 Port & Starboard港口和右 Primary and Secondary主要和次要的 Polls & Surveys民意测验和调查 Procurement and Supply采购与供应 Pittsburgh and Shawmut Railroad Company (also abbreviated as PS)匹兹堡,Shawmut铁路公司(简称注) Plain and Simple简单 Principles and Standards (USACE)原则和标准(USACE) Publish & Subscribe出版和订阅 Plans and Specifications (USACE)计划和规格(USACE) Purchase and Sale (trading)购买和销售(交易) Planning and Scheduling计划和安排 Procedures and Systems程序和系统