borehole survey

例句：

1. 1. The geologistconducted a borehole survey to determine thedepth of the underground water.
   地质学家进行了钻孔调查，以确定地下水的深度。
2. 2. Thecompany plans to conduct a borehole surveyto assess the feasibility of buildinga new highway.
   该公司计划进行钻孔调查，以评估建设新高速公路的可行性。
3. 3. Theborehole survey revealed that there was asignificant amount of oil beneath the surface.
   钻孔调查揭示了地表下有大量的石油。