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本文目的在于用理论及数据说明短边测量对隧洞横向贯通影响的程度，进而引起测绘工作者对短边测量的注意，同时提出一些解决的方法。
The purpose of this paper is to use theory and data to explain the influence of short-side measurement on the tunnel transverse penetration, and then cause the surveyors to pay attention to the short-side measurement and propose some solutions.