radiant heat flux - receder stock die
- radiant heat flux
- radiation protection
- radiation sensing
- radiation test
- radiation tolerance
- radiation-damage stability
- radiation-hardened
- radiation-resistant material
- radio contact
- radio frequency tag
- radio telemetry
- radio transmission probe
- radio-beacon station
- radio-controlled AGV
- radio-controlled probe system
- radio-frequency sensor
- radio-guided robot
- radioactive tool
- radiosity
- radium control
- radius channel
- radius key
- radius of accuracy
- radius of curvature
- radius of edge
- radius of gyration
- radius of repeatability
- radius of resolution
- radius of wheel face
- radius tool
- radius-grind
- radius-vector
- radiused
- radiused slot
- radiusing
- radix notation
- rail
- rail and slide parallelism
- rail brake
- rail computer controlled vehicle