erro - fail
- external broaching
- external broaching machine
- external cable
- external calibration
- external cam
- external characteristic
- external clock mechanism
- external CNC equipment
- external compression
- external cylindrical centerless grinding machine
- external cylindrical grinding
- external database
- external datum profile
- external disturbances
- external dovetail
- external engagement
- external examination
- external failure costs
- external force
- external friction
- external gage
- external gas pressure cable
- external gear
- external gear pair
- external gear pump
- external gear set
- external gearing
- external grinder
- external grinding apparatus
- external grinding machine
- external grooving
- external honing
- external honing machine
- external immunity
- external information
- external input
- external input terminal
- external lapping
- external laser feedback
- external load
