isohyetal line chart

例句：

1. 1.The engineer used an isohyetal line chart to plot the elevation of the mountain.
   工程师使用等高线图来绘制山的海拔。
2. 2. The isohyetal line chart helped us visualize the distribution of resources across the region.
   等高线图帮助我们可视化了该地区资源的分布。
3. 3. The isohyetal line chart is a valuable tool for analyzing topographic data.
   等高线图是分析地形数据的一种宝贵工具。