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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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