The paper also analyzed and studied the disturbance caused by topography and the result of topographiccorrection 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。
2
So far as 3D gravity and magnetic survey is concerned, the data acquisition, topographiccorrection 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；
3
The topographiccorrection of the electric sounding data by the boundary element method for anomalous potential is discussed, and the significance effect is obtained.