Traditional construction methods firstly in the small scaletopographic map, choose several feasible options, through field reconnaissance to confirm the optimize region.
传统的机场建设方法是首先在小比例尺地形图上选择几种可行方案,通过实地踏勘确定最佳区域。
2
In traditional reservoir capacity calculation, a planimeter is used to obtain a reservoir capacity from topographic maps and large scaletopographic maps are needed if high accuracy is required.