说明：  该程序适用于地质勘查工作者，业内俗名为凉开水CAD。是CAD的一个插件，主要是想方便地质勘查工作者方便绘制地形地貌图
(This procedure is applicable to geological prospecting workers, the common name for the cool boiling water CAD. Is a plugin for CAD, mainly to facilitate the geological exploration workers to conveniently draw landform map)