Assertion: reference ellipsoid | /r/HasProperty | different
Facets:
Source sentences:
text: Although the reference ellipsoids used in the NAD-27 and NAD-83 are different, ...
text: Therefore, the reference ellipsoid and normal ellipsoid were initially two different concepts.
text: Although the reference ellipsoids used in the NAD-27 and NAD-83 are different, the changes are slight on large-scale maps (scales will be discussed in greater detail later).