wheel - wheel system

in-wheel motor wheel

scouring wheel and buffing wheel

sprocket ; sprocket-wheel ; sprocket gear ; chain wheel

sprocket sprocket-wheel sprocket gear chain wheel

wheel turning lathe not needing to take wheel off the bogie

AC boost-chopper

AC chopper

AC chopper inverter

Air chopper

Auxiliary chopper circuit

Background chopper

bait chopper

beam chopper

beet chopper

blind rope chopper

Boost chopper

boost chopper circuit

bowl chopper