air - anti
- air-to-ground distance
- air-to-ground message
- air-to-ground ranging
- air-to-water cooling
- air-trap slot of siphon spillway
- air-tube dispatch system
- air-turbine starter
- air-type solar collector
- air-vapor mixture
- air-vapor temperature
- air-vent pipe
- air-vent unit heater
- air-vent valve
- air-ventilation chamber
- air-wall material
- air-water flow
- air-water heat pump
- air/oil ratio
- air/space vehicle
- airbag inserting device
- airblast atomization
- airboat
- airborn instruments laboratory
- airborn processor
- airborn sealing
- airborne
- airborne aircraft
- airborne antenna
- airborne ash
- airborne beacon
- airborne computer
- airborne contaminant
- airborne direction finding equipment
- airborne display
- airborne dust
- airborne early-warning station
- airborne electromagnetic method
- airborne electromagnetics
- airborne electronics
- airborne electronics equipment