D ile Başlayan Teknik Terimler
- dual
 - dual capacitor
 - dual carburettor
 - dual control
 - dual control airplane
 - dual conversation
 - dual diode
 - dual exhaust
 - dual flight time
 - dual floppy system
 - dual ignition
 - dual modulation
 - dual operation
 - dual pickup
 - dual potentiometer
 - dual processor
 - dual purpose weapon
 - dual rheostat
 - dual space
 - dual speed wiper
 - dual standard
 - dual stereo amplifier
 - dual system
 - dual system loudspeaker
 - dual thermostat
 - dual triode
 - duality
 - dubbed version
 - dubbing studio
 - dubious
 - ducol punched card system
 - duct
 - ductile
 - ductless
 - due date
 - duel
 - duet
 - duffle
 - dugout
 - dulcin
 - dulcite
 - dull effect
 - dull emitter cathode
 - dull surface
 - dulling agent
 - duly constituted
 - dumb
 - dumb aerial
 - dumb terminal
 - dumbbell