- resource registration
- Resource Settings
- respirator
- respond
- response characteristic
- response duration
- response frame
- response mode
- response window
- responsible person
- restart condition
- restart routine
- restoration procedure
- restore
- restore icon
- restrain
- restricted delivery
- restricted functions
- restricted language
- restricted token
- result
- result file
- retarded potential
- resolution factor
- resolvent equation
- resonant mode
- resource
- resource centre
- resource editor
- resource security
- resource sharing
- resource symbol
- responding address
- response header
- response message
- response unit
- rest mass
- restart
- restart instruction
- restart phase
- restore defaults
- restoring logic
- restrict
- restricted
- restricted mapping
- restricted ring
- restricted subnetwork
- restriction
- result code
- resulting deduction
- resynthesis
- retail communications
- retained
- retained data
- retaining contact
- retarded control
- retention period
- retention time
- retransmission unit
- retreat
- retrieval code
- retrieval port
- retrieval time
- return key
- reusable
- reusable packaging
- reusable routine
- reuse
- reversal point
- reversal test
- reverse authentication
- reverse bias
- reverse channel
- reverse clipping
- reverse interrupt
- reverse printer
- reversible
- reversible elements
- reversive semigroup
- revert command
- review mode
- revising forms
- revision number
- revolution
- revolution soil
- rewind speed
- rewinder
- rewriting circuit
- rheological equation
- rheostat
- rhombic
- rhomboid
- rhomboidal
- ribbon cable
- ribbon guide
- rider
- ridge pole
- rigger
- right
- right bracket