Delivered Duty Unpaid 
Data Display Unit 
Deliverd Duty Unpaid 
Direct Deploying Unit 
DATA DISTRIBUTION UNIT 
Decommutator Distribution Unit 
Destination Delivery Unit 
Dialog Data Unit 
Digital Distribution Unit 
Disk Drive Unit 
Display Driver Unit 
Data Description Unit 
Delivered Duty unpaid. 
dermodistortive urticaria 
Description Data Unit 
Destinating Delivery Unit 
Dialogue Data Unit 
digital data unit 
Digital Display Unit 
Disability Determination Unit 
Disc Drive Unit 
Disk Drive Units 
Diskette Drive Unit 
Distant Device Unit 
Document Distribution Unit 
Driver's Display Unit 
duplex Doppler ultrasonography 
Duplex Doppler ultrasound