为了深入了解事物的本质,常常要求找出各种变量之间所存在的某种关系式,在地质科学中这类问题很多,电法勘探亦不例外。即参数ρ_s与h之间存在着一定的相关关系。如某一地层的埋深与反映该层的某一区段上的p(或变换后的参数)或ρ_s曲线上的特征点(极大点、极小点、拐点、切交点 In order to gain a deeper understanding of the nature of things, it is often required to find some relationship between the various variables. There are many such problems in geosciences and electrical prospecting is no exception. That is, there is a certain correlation between ρ_s and h. For example, if the depth of a certain formation and the characteristic points (maximum point, minimum point, inflection point, intersection point) on the p (or transformed parameter) or ρ_s curve reflecting a certain section of the layer