dose meter - drop vent
- dose meter
- dose-rate meter
- dosing
- dosing apparatus
- dosing chamber
- dosing screw
- dosing station
- dosing tank
- dosseret block
- dot
- dot and dash line
- dot line
- Dot recording system
- dot-and-dash line
- dote
- dotted
- dotted line
- dotting
- double action
- double action door
- double angle
- double arm frame paint roller
- double bottom
- double branch
- double branch pipe
- double butt plate
- double casement
- double casement window
- double centering
- double circuit line
- double coat
- double contilever girder
- double core barrel
- double course
- double crossover
- double curvature shell
- double dimple
- double disk gate valve
- double door
- double drainage
