digit-digit Communication

wheel - wheel system

digit by digit algorithm

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

10-Digit

16 digit microcomputer

4-digit Toggle Switch

A digit selector

A digit switch

a digit synchronized communication net

accompanying check digit

added digit

addend digit

A-digit selector

A-digit switch