rethreading - robot optics
- rethreading
- reticle reference
- retightening
- retinex
- retrace
- retract motion
- retract signal
- retract switch
- retractable divider
- retraction speed
- retractor
- retreatment
- retrieval operation
- retrieval request
- retrieval system
- retrieval time
- retrimming
- retriver slide
- retroactive
- retrofit CNC package
- retrofit kit
- retrofit machine
- retrofitted machine
- retrofitted machine tool
- retrofitter
- retroflector
- retrograde precession
- retroreflective
- retrue
- retruing
- return instruction
- return line
- return motion
- return on investment
- return rate
- return run
- return signal
- return speed
- return spring system
- return stroke
