PolyIsoButylene聚异丁烯 Policy Information Base政策的信息库 Processor In A Box盒装处理器 Press Information Bureau新闻信息局 Pädagogisches Institut des Bundes (Vienna, Austria)Pädagogisches Institut des Bundes (Vienna, Austria) Product Implementation Branch (NOAA)产品实施分支(NOAA) Polar Ionosphere Beacon极地电离层明灯 Polytechnic Institute of Brooklyn (later Polytechnic Institute of New York)理工学院(后来的布鲁克林纽约理工学院) Product Improvement Bulletin产品的改进 Pyrotechnic Installation BuildingPyrotechnic安装建筑 Practice Improvement Branch实践改进分支 Press Information Bulletin新闻信息通报 Preflight Information Bulletin (aviation)飞行前信息通报(航空) Personnel Information Briefing人事信息发布 Press Information Bureau (Government of India)新闻信息局(的印度政府)