We present some simple practical 1-d inversion methods, including Bostick inversion method and the method which approximates magnetotelluric field by direct current field.

本文介绍几种简单易行而又相当准确的一维反演方法，其中包括博斯蒂克反演方法和用直流电场分布逼近大地电磁场分布的反演方法。

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As to forward, emphasis is on analyzing basic equations, boundary conditions and finite-element solutions for magnetotelluric field in two dimension of finite-element forward method.

在正演方面，着重分析了有限元正演方法的基本方程序，边界条件以及二维大地电磁场的有限元解法。

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Magnetotelluric (MT) sounding is an important geophysical means to study the Earth electrical structure using the natural EM field as its source.

大地电磁测深法(MT)是以天然电磁场为场源研究地球内部电性结构的一种重要的地球物理手段。

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