| http://www.w3.org/ns/prov#value | - vertical plane; also, the angle of elevation, that is, the angle between the axis of the piece and the line o sight; - distinguished from direction.7.(Drawing) A geometrical projection of a building, or other object, on a plane perpendicular to the horizon; orthographic projection on a vertical plane; - called by the ancients the orthography.Angle of elevation (Geodesy) the angle which an ascendi
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