DLT of the coordinate difference
mixed coordinate additions of affine coordinate an
difference in difference
difference in difference (DD) method
Difference-in-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-D boundary-fitted coordinate
3D cartesian coordinate system
3D constant speed coordinate turn model
3D coordinate axis transformation