abbr.	Record File Address	RFA
		abbr.	Retarding Field Electron Analyser	RFA
		abbr.	Roll Film Adapter	RFA
		abbr.	Result File Descriptor	RFD
		abbr.	Radio Frequency Modulator	RFM
		abbr.	Rigid Fork Technology	RFT
		abbr. phys.	Residual Gas Analyser	RGA
		abbr. med.	Rhesus blood factor	Rh
		abbr.	Request Header	r.h.
		abbr.	Response Header	r.h.
		abbr.	Retrieval Information Block	RIB
		abbr.	Racketeer-Influenced and Corrupt Organizations Act	RICO
		abbr. comp.	Routing Information Protocol	RIP (see also IGP)
		abbr. tech.	Resin-In-Pulp process	RIP
		abbr. tech.	Reliability Improvement Program	RIP
		abbr.	RJET	Remote Job Entry (Terminal)
		abbr. med.	RLL	right lower lobe
		abbr. comp.	Resource Location Protocol	RLP
		abbr. med.	RLQ	right lower quadrant
		abbr. tech.	Radiation Monitoring Devices	RMD
		abbr. tech.	Resource Monitoring Display	RMD
		abbr. comp.	Reliable Multicast Protocol	RMP
		abbr. comp.	Reliable Multicast Transport Protocol for multicasting files in a wide area network	RMTP
		abbr. comp.	Reliable Multicast Transport Protocol for multicasting continuous data streams in a wide area network	RMTP+
		abbr.	RuNOff	RNO
		abbr.	Result Option Descriptor	ROD
		abbr.	Romania	Rom.
		abbr.	Result Parameter Block	RPB
		abbr. med.	Reticulocyte Production Index	RPI
		abbr.	ReQuest Recovery	RQR
		abbr. comp.	Register-Register Operation	RR
		abbr. econ.	Registered Representative	RR
		abbr. med.	RR	respiratory rate
		abbr. tech.	Rust Resisting	RR
		abbr. tech.	Rig Released	RR
		abbr.	Reinforced Reaction Injection Molding	RRIM
		abbr.	Radio Relay Line	RRL
		abbr.	Record Reference Vector	RRV
		abbr.	Request Sense	RS
		abbr. cryptogr.	Cryptosystem proposed by R.L.Rivest, A.Shamir and L.M.Adleman	RSA
		abbr.	Record Selection Expression	RSE
		abbr.	RSG	rate support grant
		abbr.	Request SHUTdown	RSHUT
		abbr.	Radial Serial Protocol	RSP
		abbr.	ReSPonse	RSP
		abbr.	Resource-Sharing Timesharing System/Extended	RST/E
		abbr.	Rich Text File	RTF
		abbr.	Register Transfer Language	RTL
		abbr.	Ready To Receive	RTR
		abbr.	Run-Time System	RTS
		abbr.	Response Unit	RU
		abbr. med.	RUL	right upper lobe
		abbr. med.	RUQ	right upper quadrant
		abbr. med.	RV	right ventricle
		abbr.	Relative Volume Number	RVN
		abbr.	Relative Volume Table	RVT
		abbr. geogr.	Rwanda	Rw.
		abbr.	Report Writer Control System	RWCS
		abbr. econ.	Standard & Poors Index	S&P index
		abbr. geogr.	Sierra Leone	S. L.
		abbr.	S.B.	savings bank
		abbr. geogr.	South Carolina SC	S.C.
		abbr.	Special Drawing Rights	S.D.R.
		abbr.	single-entry bookkeeping	s.e.
		abbr.	Single Edge Connector Cartridge	S.E.C.C.
		abbr.	semifinished	s.f.
		abbr.	SelfMonitoring, Analysis and Reporting Technology	S.M.A.R.T.
		abbr.	selling price	s.p.
		abbr.	Sacrae Theologiae Baccalaureus	S.T.B. (Bachelor of Sacred Theology)
		abbr. med.	status post	s/p (операции)
		abbr. lat.	sine anno	sa (without date)
		abbr.	stamped addressed envelope	sae
		abbr.	self-addressed envelope	s.a.e.
		abbr.	Stock Exchange Automatic Execution Facility	SAEF
		abbr. comp.	Security Association ID	SAID
		abbr. comp.	Serial Access Memory	SAM
		abbr. comp.	Single Application Mode	SAM
		abbr. comp.	SCSI-3 Architecture Model	SAM
		abbr. phys.	Scanning Auger Microanalysis	SAM
		abbr. tech.	Shuttle Attachment Manipulator	SAM
		abbr. tech.	System Availability Model	SAM
		abbr. tech.	Standard Allowed Minute	SAM
		abbr. geogr.	San Marino	San Mar.
		abbr. astr.	Smithsonian Astrophysical Observatory	SAO
		abbr.	Storage Address Register	SAR
		abbr.	Syrian Arab Republic	SAR
		abbr.	Simple Audio Score Language	SASL
		abbr. med.	saturated	sat
		abbr.	Scholastic Assessment Test	SAT (formerly Scholastic Aptitude Test)
		abbr. geogr.	Saudi Arabia	Saud. Arab.
		abbr.	Synchronous Backplane Interconnect	SBI
		abbr.	System Base Register	SBR
		abbr. med.	subcutaneous	subcu
		abbr. comp.	Supervisory Control And Data Acquisition	SCADA (АСУТП)
		abbr.	Structured Computer-Aided Logic Design	SCALD
		abbr.	Scheduling and Control by Automated Network Systems	SCANS
		abbr.	System Control Block	SCB
		abbr.	System Control Block Base Register	SCBBR
		abbr. astr. lat.	Sculptor	Scl (Скульптор)
		abbr.	Southern Christian Leadership Conference	SCLC

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