distance between centres of lines；distance between centers of tracks；midway between tracks
distance offset distance
compact disc recordable drive [CD recordable drive]
compact disc rewritable drive [CD rewritable drive]
DE-ME-Drive (decoding memory drive)
diesel-electric drive [= diesel electric drive
Diskette Drive， Floppy Disk Drive FDC
drive axle drive shaft bolt
ground drive axle drive shaft
ground drive pump drive shaft
pump drive gearbox drive
pump drive gearbox drive belt
pump drive gearbox drive sheave
six-wheel drive transfer drive
TREK Thumb Drive (e-Bar Drive)
zero distance connection
2-distance chromatic number