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geodetic datum
释义
geodetic datum
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工学
大地测量基准
释
geodetic datum
大地测量基准
为测定和描述地球空间点的坐标和重力、近地空间点的高程等几何和物理大地测量参数而建立的全球或区域统一的度量体系。又称测绘基准。
工学
几何大地测量学
释
geodetic datum
大地坐标基准
一种作为测量计算的参考依据。大地测量时作为计算依据的“事物”，可为“实际”的真实物理面。
Astronomy
geodetic datum
大地基准点
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