The values of analytical continuation at different depths from the potential field downward constitute the continuation field, on which the principal component analysis is made.
位场向下在不同深度上解析延拓的值构成延拓场，可对延拓场进行主成份分析。
This paper discusses the upward continuation of magnetic body on curved surface of magnetic field with the help of double potential theory.
本文借助双层位势理论来讨论磁源体于曲界面上的场的上延问题。
This method may also be used for analysis of potential-field continuation conversion.
该方法可直接用于位场的延拓变换分析。
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