| 释义 |
azimuth circle
noun
1. : one of the great circles of the celestial sphere intersecting each other in the zenith and nadir — called also vertical circle; compare meridian 2
2. : a horizontal graduated circle for indicating azimuth (as one having sight vanes and screens and attached to a compass to show magnetic azimuths or one having a telescope for accurate measurement of differences of azimuth) |