Assertion: coordinate system's unit | /r/HasProperty | defined on different bases
Facets:
Source sentences:
text: * 60 meridional minutes of arc, which equals 0.54 nautical mile, though this is not exact because the two units are defined on different bases (the international nautical mile is defined as exactly 1,852 m, corresponding to a rounding of 1,000/0.54 m to four digits).