mining map

例句：

1. 1. The mining company has been mapping theunderground veins for years.
   这家矿业公司多年来一直在绘制地下矿脉。
2. 2. The geologist used a mining map to locate themineral deposits.
   地质学家使用采矿地图来定位矿物矿床。
3. 3. Theminers were using amining map to guide them throughthe mountainous terrain.
   矿工们正在使用采矿地图来引导他们穿越山区地形。