topographic reconnaissance

例句：

1. 1.The topographic reconnaissance team was deployed to the mountainous area.
   地形侦察队被部署到山区。
2. 2.The surveyors used topographic reconnaissance techniques to map the terrain.
   测量员使用地形侦察技术来绘制地形图。
3. 3.The topographic reconnaissance data helped in planning the construction of new roads.
   地形侦察数据有助于规划新道路的建设。