lead - link
- line of industry
- line of perspective
- line of repeater bays
- line of shafting
- line of sight
- line of the saw travel
- line output stage
- line output transformer
- line packing
- line path
- line pattern
- line pedestal
- line pick
- line pipe
- line pitch
- line plotting
- line pressure
- line printing
- line projection contouring technique
- line protection switching
- line pump
- line radio
- line rate dispersal waveform
- line recall key
- line reconnection
- line record
- line regulating section
- line replaceable module
- line replaceable unit
- line reserved for incoming traffic
- line reserved for outgoing traffic
- line residual equalizer
- line rotation
- line rules
- line saw-tooth
- line scanning
- line scraper
- line search method
- line section
- line segment
