Difference of Depth of Modulation DDM
a fixed depth of investigation
All depth of decarburization of steel
analysis of depth and grain size
angle and depth of needling
angular depth of thread
apparent depth of color
application of depth measurement
assuring rate of depth datum
Automatic control of depth
automatic depth of field
available depth of soil
burial depth of coal reservoir
burial depth of the boundary
Buried Depth of Arc Abutment
buried depth of basement
buried depth of bedrock
buried depth of eco-safety on ground-water table