air - anti
- air-hydraulic cylinder
- air-hydraulic power unit
- air-hydrogen fuel cell
- air-impact wrench
- air-in
- air-injection engine
- air-injection secondary recovery
- air-insulated equipment
- air-intake cooler
- air-intake filter
- air-jet terry loom
- air-jet texturing
- air-jet weaving machine
- air-knife coater
- air-laid machine
- air-lance
- air-launched buoy
- air-leg
- air-lift aerator
- air-lift agitator
- air-lift catalytic cracker
- air-lift loop reactor
- air-lift well operation
- air-liquefaction mode
- air-liquefaction propulsion
- air-liquefaction shuttle
- air-liquefaction transatmospheric vehicle
- air-liquefaction-turbo ramjet
- air-load distribution
- air-lubricated bearing
- air-lubricated propeller
- air-mass cloud
- air-mass flow
- air-mass fog
- air-mass precipitation
- air-mass shower
- air-mass thunderstorm
- air-mass transformation
- air-melted steel
- air-mineral adhesion