surface geothermal manifestation

例句：

1. 1.The geothermal energy is a significant source of renewable energy.
   地热能是一种重要的可再生能源来源。
2. 2.The surface geothermal manifestation has been studied extensively in the field of geophysics.
   地表地热表现已在地球物理学领域得到了广泛的研究。
3. 3. The geothermal manifestation can be used as a tool for monitoring the groundwater level.
   地表地热表现可以作为监测地下水位的工具。