... 度盘 circle 自力坐标系 independent coordinate system 自力模型法空中三角测量 independent model aerial triangulation ...
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independent equatorial coordinate system 恒星赤道坐标
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Based on the practice of high-grade highway tunnel GPS survey, establishment and data processing method for independent coordinate system of tunnel GPS control network are introduced in the paper.
本文根据生产实践，介绍了高等级公路隧道GPS控制网的建立及用于施工坐标系的数据处理方法。
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