air - angl
- air
- air accumulator
- air bearing
- air bleed valve
- air bleeder
- air brake
- air breathing engine
- air buffer
- air car
- air cell engine
- air chamber
- air chamber engine
- air chipper
- air chuck
- air circulation
- air classifier
- air cleaner
- air cleaning
- air cock
- air compressor
- air conditioner
- air conditioning
- air consumption
- air container
- air contamination
- air conveying
- air cooled
- air cooled condenser
- air cooled cylinder
- air cooled engine
- air cooled turbine
- air cooled valve
- air cooler
- air cooling
- air cooling apparatus
- air cooling fin
- air current
- air curtain
- air cushion
- air cushion ship
