三度体磁异常的定量解释,由于缺乏合适的方法,或是为简化计算,人们曾设想,沿观测平面上一定的方向,对实测的三度体磁异常进行线积分,而获得具有一定横截面(其形状与原三度体有关)的二度体的磁异常,从而采用简单的二度异常反演方法或利用二度量板的选择法,间接地对原来的三度体磁异常作出推断解释.这种方法的原理、具体做法、误差和实际应用,文献中已有记载.但对该法的实质还有含混不清之处,误差的分析比较片面,因此,妨碍了对该法作 Due to a lack of suitable methods or to simplify the calculations, it has been assumed that the third-degree bulk magnetic anomaly is linearly integrated along a certain direction along the observation plane to obtain a horizontal (The shape of which is related to the original third-degree body), so as to infer the original third-degree body magnetic anomaly by a simple second-degree anomaly inversion method or the use of a two-gauge board selection method Explain the principle of this method, the specific practices, errors and practical application, the literature has been documented, but the substance of the law is still ambiguous, the analysis of the one-sided error, thus preventing the law