estimation - fact
- expansion sleeve
- expansion strip
- expansion tank
- expansion U-bend
- expansion valve
- expansion vessel
- expansion washer
- expansion wave
- expansive clay
- expansive concrete
- expansive-cement concrete
- expectation
- expected
- expected change in size
- expected conditions
- expected gain
- expected life
- expected period of works
- expected risk
- expected service
- expected service life
- expel
- expendable materials
- expended rubber
- expenditure
- expenditure account
- expense
- expenses for maintenance
- expensive clay
- experience
- experience level
- experiment
- experimental analysis
- experimental constructional material
- experimental design
- experimental development
- experimental investigation
- experimental model
- experimental precision
- experimental procedure