a. of or relating to or based on geology
a. 地质学的, 地质的
1. The geological study of mountains helps us understand their formation.
对山脉的地质研究帮助我们了解它们的形成。
2. Many geological features, like valleys and rivers, were created by erosion.
许多地质特征，如山谷和河流，是由侵蚀形成的。
3. Geological surveys are important for finding natural resources like oil and minerals.
地质调查对于寻找石油和矿物等自然资源非常重要。