介绍经纬仪极坐标放样法在公路施工应用中的操作方法，计算原理及步骤等。
It deals with the operation, calculation principle and steps in the application of transit polar setting-out in highway constructions.
我通过下面的程序来开始操作：(1)在基本草模的基础上画出直线；(2)用弧线工具柔化转角；(3)留下圆滑的线条准备放样。
I started the process by (1) taking line work off of my base massing model, (2) using the Arc tool to soften the corners, (3) leaving me with smooth line work to loft.
其中操作部分对PD A上的软件安装、基准站的建立和转换参数的求解、移动站的操作、点放样等方面进行了详细的说明。
In operation part, the installation of PDA software, establishment of base station, solution of transformation parameters, operation of moving points, point setting-out etc. were explained in detail.
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