- film formation
- film potentiometer
- film thickness
- filter element
- filter fouling
- filter medium
- filtered air
- filtering surface
- fin chiller
- fin pitch
- fin thickness
- final freezing
- final position
- final thawing
- fine
- fine filtration
- finger
- filter reactor
- filter section
- fin configuration
- fin efficiency
- fin spacing
- final velocity
- finder
- finger print
- finiteness
- finned
- finned coil
- finned element
- finned surface
- fire ball
- fire damper
- firing button
- firing cable
- first approximation
- first order
- fish room
- fission bomb
- fission fragment
- fission probability
- fission product
- fission rate
- fitting
- fixation
- fixed
- fixed inductor
- fixed loss
- fixed resistor
- fixed temperature
- fixed value
- fixing agent
- flame detector
- flame spectrum
- flameproof
- flameproof instrument
- flammable refrigerant
- flap attenuator
- flare
- flash bulb
- flash chamber
- flash cooler
- flash cooling
- flash current
- flash evaporation
- flash gun
- flash intercooler
- flash intercooling
- flash magnetization
- flash point
- flash spectrum
- flash tank
- flash test
- flash vaporization
- flashing point
- flashover test
- flat rate
- flavor permeability
- flaw
- flexible coupling
- flexible film
- flexible tray
- flicker noise
- flit plug
- float control
- float gauge
- float tray
- Floating charge
- flooded battery
- flooded condenser
- flooded evaporator
- flooded nozzle
- floor area
- floor plan
- flow pattern
- flow resistance
- flow throttling
- fluctuating noise
- fluctuation effect
- fluid losses
- fluid tank