altazimuth

altazimuth
[alˈtazɪməθ]
noun
  1. (亦作 altazimuth mount 或 mounting)(Astronomy)a telescope mounting that moves in azimuth (about a vertical axis) and in altitude (about a horizontal axis)
    (天文)经纬仪天文望远镜的底座(可以水平和垂直旋转)。 比较 equatorial mount
    ■(亦作 altazimuth telescope)a telescope on such a mounting
    经纬仪天文望远镜
  2. a surveying instrument for measuring vertical and horizontal angles, resembling a theodolite but larger and more precise
    地平经纬仪
语源
  1. mid 19th cent.: blend of altitudeand azimuth
英语宝典
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