“optical theodolite”的概念、定义、翻译、参考文献-科学参考

单词	optical theodolite
释义	optical theodolite Encyclopedia 工学经纬仪释 optical theodolite光学经纬仪用于测量水平角和竖直角及概略距离的测量仪器。是经纬仪的一种，因度盘刻度和读数方式为纯光机结构得名。理学〔光学仪器〕释 optical theodolite光学经纬仪主要作为测量水平角和竖直角之用的光学仪器。水平角为空间两相交直线在水平面上投影的夹角，竖直角为在同一竖直面内，目标方向和水平线之间的夹角。 Astronomy optical theodolite光学经纬仪
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