underground geology

例句：

1. 1.The study of underground geology is crucial for understanding the earth's structure and movement.
   研究地下地质学对于理解地球的结构与运动至关重要。
2. 2. Geologists use advanced technology to map the underground geology of the area.
   地质学家使用先进技术来绘制该地区的地下地质图。
3. 3. The discovery of a new underground geological formation has sparked excitement among scientists.
   新发现的地下地质构造引起了科学家的兴奋。