Resilient Packet Ring Alliance弹性包环的联盟 Remotely Piloted Research Aircraft遥控研究的飞机 Russian Public Relations Association俄罗斯公共关系协会 Radiata Pine Remanufacturers AssociationRadiata松Remanufacturers协会 Rapid Participatory Rural Appraisal快速参与式农村评估 Respiratory Protection Program Administrator呼吸保护项目管理人 Rhône-Poulenc Rorer Australia PtyRhône-Poulenc Rorer Australia Pty Republican Prisoners Release Association (Ireland)共和党的囚犯释放协会(爱尔兰) Reel Position Raise Actuator致动器的位置提高摇摇晃晃 Royal Pigeon Racing Association皇家鸽赛马协会 Romanian Public Relations Association罗马尼亚的公共关系协会 Riverside Park Residents' Association (Fort Lauderdale, Florida)河畔公园居民协会(劳德代尔堡,佛罗里达) Richmond Public Relations Association意想不到的公共关系协会 Reliability and Probabilistic Risk Assessment可靠性和概率风险评估 Railroad Public Relations Association (now defunct)铁路的公共关系协会(现在已经死了)