auxi - barr
- auxiliary air
- auxiliary connecting rod
- auxiliary device
- auxiliary drive
- auxiliary engine
- auxiliary equipment
- auxiliary fuel tank
- auxiliary robot
- auxiliary spring
- auxiliary time
- auxiliary transmission
- auxiliary turbine
- auxiliary valve
- auxiliary ventilator
- availability time
- available energy
- available head
- average
- average error
- average ignition delay time
- average life
- average load
- average pressure
- average relative discharge duration
- average speed
- average tempetature
- average value
- average velocity
- aviation
- aviation fuel
- aviation gas turbine
- aviation gasoline
- aviation industry
- aviation oil
- avionics
- avogadro's number
- avometer
- awc
- axes of coordinates
- axial
