Assertion: reference ellipsoid | /r/HasProperty | oblate flattenedspheroid
Facets:
value: with two different axes
type: OTHER
value: usually
type: DEGREE
value: mathematically
type: DEGREE
Source sentences:
text: Mathematically, a reference ellipsoid is usually an oblate (flattened) spheroid with two different axes: An equatorial radius (the semi-major axis ), and a polar radius (the semi-minor axis ).