air distribution box - alluvial terrace
- air valve
- air vane
- air velocity
- air vent
- air ventilator
- air vessel
- air vibrator
- air void
- air void content
- air void line
- air void ratio
- air volume control
- air washer
- air washing
- air washing of filter
- air wave
- air waybill
- air well
- air winch
- air wire
- air working chamber
- air wrench
- air-activated
- air-actuated
- air-actuated friction clutch
- air-arc cutting
- air-blast-cooler
- air-blown
- air-blown asphalt
- air-blown asphaltic bitumen
- air-blown mortar
- air-borne dust
- air-brake system
- air-breathing
- air-cells
- air-charged accumulator
- air-clamping fixture
- air-cleaning machinery
- air-comfort system
- air-conditioned