free - gas
- free airport
- free alongside ship &abbr. f.a.s.
- free and busy test
- free area
- free available chlorine
- free azimuth coordinate system
- free bend
- free boundary problem of electrochemical machining
- free carbon dioxide
- free carrier
- free choice net
- free circuit condition
- free connective diffusion
- free convection
- free dislocation
- free distance
- free drift
- free electrolyte exhaust
- free electron laser
- free elliptic hole problem
- free entry
- free Euclidean distance
- free fall conditions
- free fall coring tube
- free fall feed
- free felling
- free filtration
- free float time
- free flow nozzle
- free flow of water
- free for the blind
- free form curve machining technology
- free from aberration(s)
- free from aberration(s)
- free gas
- free generation spiking
- free gift
- free ground water
- free hub
- free hydrostatic bulging
