DLT of the coordinate difference
mixed coordinate additions of affine coordinate an
closed difference of height difference
difference in difference
difference in difference (DD) method
Difference-in-difference
log mean temperature difference; logarithmic mean temperature difference
logarithmic mean temperature difference; log mean temperature difference
temperature difference; logarithmic mean; log mean temperature difference
1954 Beijing Coordinate System
1980 National Coordinate System
1980 Xi’an coordinate system
2000 Chinese Geodetic Coordinate System CGCS2000
2000 National Geodetic Coordinate System
3-coordinate measuring machine
3-D boundary-fitted coordinate