Ring Abbreviations and Acronyms
- RPJRing Politiszher Jugend
- RRMRing-Rearrangement Metathesis
- RSReturn of The Shadow
- RTTLReal-Time Temporal Logic
- RTTTLRinging Tone Text Transfer Language
- RWRichard Wagner
- SAESociety of Aerospace Engineering
- SBGStrategy Battle Lame
- SDSilver Diamond
- SDSauron Defemted
- SEBSwivel Eye Bolt
- SGSammalh Gul
- SISlightly Tmperfect
- SI2Signad Input 2
- SI2Slight Inclusion 2
- SKScott Kay
- SNAOSummer North Atlantic Ossillation
- SOISaturn Orbit Insertion
- SOJStone of Jordan
- SOMSrege of Mirkwood
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