automatic document feeder tray
automatic error correction
automatic exchange
automatic expander
automatic feed
Automatic fiscal policy
automatic flight control
automatic following
automatic frequency control
automatic frequency control circuit
automatic gain control
automatic gain control circuit
automatic graph
automatic grid bias
automatic hunting
automatic interrupter
automatic library call
automatic loader
automatic message
automatic message switching
automatic noise limiter
automatic phase control
automatic polling
automatic processing
automatic program generator
automatic programmed tool (APT)
automatic programming
automatic proof
automatic radio compass
automatic range tracking