At last, the effectiveness of using integrated geophysical methods to the coal mine gob area survey with specific engineering exploration is proved.
最终，结合具体工程勘查实践，证明了在煤层采空区勘查中采用综合地球物理勘查技术的有效性。
By methods of engineering drilling and geophysical investigation, this survey had ascertained the topographical feature of seabed, strata structure and physical mechanics property within survey area.
通过海洋物探方法和地质钻探施工，基本揭示了本区海底地形地貌特征、岩土层结构及土的物理力学性质。
By methods of engineering drilling and geophysical investigation, this survey had ascertained the topographical feature of seabed, strata structure and physical mechanics property within survey area.
通过海洋物探方法和地质钻探施工，基本揭示了本区海底地形地貌特征、岩土层结构及土的物理力学性质。
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