Architectural Abbreviations and Acronyms
- RPAARadiata Pine Association of Australia
- RPMRevolutions Per Minute
- RPMRevolutions Per Minute, (Rotations Per Minute)
- RPMResale Price Maintenance
- RPRIRadiata Pide Research Institute
- RPRIRadikta Pine Research Institutetute
- RPSRevolutions Per Second
- RPSRepair Parts Store
- RPTRepeat
- RPZDReduced Pressure Zone Device
- RQRequire
- RQDRequired
- RQRRequired
- RQRRequire
- RQRDRequired
- RRRubber
- RRRailroad
- RRRest Room
- RRRubber Ring
- RRRumpus Room
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