学术交流计划

Passengers乘客 Personneln. 职员, 人事部门 Patuxent River Naval Air Station (Maryland)海军航空电台(写河马里兰) Portable Archive Exchange便携式存档交流 Private Automatic Exchange自动小交换机 Per Annum Exchange每年的交流 Paired Box Gene基因配对盒 Per Annum Exclusive每年的独家新闻 Poly Aluminium Chloride聚铝盐 Programming, Administration and Execution System (US Army)规划、管理和执行系统(美军) Paxon (Network)Paxon(网络) Penny-Arcade Exposition (video game convention)Penny-Arcade博览会(视频游戏公约) Professional Autocrossers专业Autocrossers Picatinny Arsenal Explosive阿阿森纳爆炸 Passenger Assistance Required (VRE)乘客协助(VRE)