differences method - district
- dipyramid
- dipyramidal
- dipyre
- dipyrite
- dipyritization
- dipyrization
- direct angle
- direct census
- direct current circuit
- direct current conductance
- direct current generator
- direct current measurements
- direct current profiling
- direct current resistivity
- direct current technique
- direct detection method
- direct dumping method
- direct emanation
- direct energy
- direct flow
- direct Fourier transform
- direct Fourier transformation
- direct grid sampling and trenching
- direct hydrocarbon detection
- direct hydrocarbon indication
- direct hydrocarbon indicator
- direct intake of aquifer
- direct lateral log sonde
- direct measurements
- direct radiation
- direct raypath
- direct run-off
- direct signal
- direct targets of testing
- direct vertical uplift
- direct wave path
- direct-acting
- direct-current conduction anomaly
- direct-current equipment
- direct-current field