So far as 3D gravity and magnetic survey is concerned, the data acquisition, topographic correction and 3D forward and inversion methods are gradually practical;
对于重磁力三维勘探而言，数据采集、地形改正和三维正反演法已逐步走向实用；
The topographic correction of the electric sounding data by the boundary element method for anomalous potential is discussed, and the significance effect is obtained.
求解异常电位的边界单元法对电测深资料进行地形改正，应用效果明显。
The paper also analyzed and studied the disturbance caused by topography and the result of topographic correction was analyzed from the view of practice.
对于地形产生的干扰，本文也进行了分析和研究，并从实践方面进行了地形校正效果分析。
The paper also analyzed and studied the disturbance caused by topography and the result of topographic correction was analyzed from the view of practice.
对于地形产生的干扰，本文也进行了分析和研究，并从实践方面进行了地形校正效果分析。
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