Problem Statement Language问题陈述语言 Product Safety Labs产品安全实验室（与药物有关的研究与测试服务） Partido Social Liberal社会自由党 Physical Sciences Laboratory物理科学实验室 Producteurs Suisses de LaitSuisses艾米·咖啡欧蕾 Produttori Svizzeri di LatteProduttori Svizzeri迪拿铁咖啡 Pressure Safety Low压力安全低 Product Specification Level产品规格的水平 Parti Social LibÉral (French: Social Liberal Party)Parti Social LibÉral (French: Social Liberal Party) Permanent Seat License (arena ticketing)永久席位许可证(竞技场票务) Path Switch LSR (Label Switched Router)路开关LSR(标签交换路由器) Process Specification Language工艺规范的语言 Public Software Library[计] 公用软件库 Property Specification Language财产的语言 Portable Standard LISP便携式标准口齿不清