route reconnaissance

On regular highway reconnaissance work, the tangent offset method is the most common one on highway route center stake layout, but this method is limited because of route tangent as baseline for offset.

在公路常规勘测设计工作中，切线支距法是一种常用的中桩放样方法，但该方法以路线切线为基线，使用条件受到限制。

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