棱镜等高仪

  • 网络prismatic astrolabe
棱镜等高仪棱镜等高仪
  1. OPL棱镜等高仪天顶距改正的温度特性的研究&特性曲线研究方法的讨论

    The temperature characteristic for the zenith distance correction of the DANJON astrolabe & the discussion of a method for studying the characteristic curve