Altazimuth

[æl'tæzimәθ]

(noun.) an instrument that measures the altitude and azimuth of celestial bodies; used in navigation.

校對:西尔玛--From WordNet

(n.) An instrument for taking azimuths and altitudes simultaneously.

爱丽丝錄入

n. an instrument devised by Sir G. B. Airy for determining the apparent places of the heavenly bodies on the celestial sphere.

校對:沃尔多