ppe是什么意思（ppe管和ppr管的区别）

意思是ppe公司

abbr.人员、地点与事件(People, Places and Events);个人保护装备(Personal Protective Equipment);计划、准备、实施(Plan, Prepare, Execute);

例句The technical trend of modified PPE alloys were also discussed.最后还介绍了改性聚苯醚的开发方向、技术动态和发展趋势。