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The function of astronomical leveling in height survey of position traverse control network is introduced.
简要介绍了天文水准在阵地导线网高程测量中的作用。
youdao
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The function of astronomical leveling in height survey of position traverse control network is introduced.
简要介绍了天文水准在阵地导线网高程测量中的作用。
youdao