die- - dose
- direct quenching
- direct ray
- direct reading
- direct reading [DR] ferrograph
- direct readout image dissector
- direct readout satellite
- direct rear mounting
- direct recombination
- direct recording
- direct reduction process
- direct reference
- direct reflection
- direct refrigerant contact
- direct relation
- direct resistance furnace
- direct resistance heating
- direct rolling
- direct rolling mill
- direct rolling of conticast products
- direct route
- direct runoff
- direct scattering
- direct scrap rolling
- direct screening
- direct selection
- direct sensor
- direct shock wave
- direct sizing control
- direct solar radiation
- direct sound level
- direct speech circuit
- direct spinner
- direct stabilization method
- direct steam
- direct steam cycle
- direct stress
- direct stroke
- direct surface flow
- direct synthesis
- direct teaching method