erro - fail
- externally toothed
- exteroceptive sense
- extinction coefficient
- extinction ratio
- extinguisher
- Extnd
- extra attachment
- extra deep drawing steel
- extra generation
- extra high lifter
- extra high-purity metal
- extra length
- extra light drive fit
- extra light series
- extra long series
- extra test hardware
- extra-depth blade
- extra-hard alloy
- extra-heavy-duty
- extra-large characters
- extra-length drill
- extra-pressure oil
- extract instruction
- extracting machine
- extracting nut
- extraction
- extraction force
- extraction inhibiting groove
- extraction pin
- extraction procedure
- extraction test
- extraction window
- extractor
- extractor gage
- extractor system
- extrafine steel
- extrahard steel
- extraheavy line
- extrahigh tensile alloy
- extrahigh tensile steel
