flus - free
- foliated zeolite
- foliation
- follow board
- follow die
- follow system
- follow-up
- follower plate
- following
- food-can scrap
- fool performance
- foot lever press
- footpath
- footwalk
- forbidden (energy) level
- forbidden energy range
- force
- force a machine
- force against
- force fan
- force fit
- force in
- force in air
- force of flame
- force offtake
- force open
- force out
- force through the die
- force together under pressure
- force-distance diagram
- force-off time
- forced air blast
- forced crystallization
- forced diffusion
- forced draft cooling tower
- forced feed
- forced lubrication
- forced magnetostriction
- forced reversing
- forced settling
- forced-air quench