中文摘要：

详细介绍了利用磁法勘探确定水下磁性体位置的一个具体实例。利用化极后磁异常的最大值位置确定水下磁性体中心的水平位置；运用插值切割法确定其中心埋深，这2种方法在这一实例上取得了较好的效果。

英文摘要：

With a practical example, this paper deals with the determination of the position of an underwater magnetic object by means of magnetic exploration. The utilization of the horizontal position of the maximal local magnetic anomaly reduced to the pole as the hori- zontal position of an underwater magnetic object and the estimation of the depth of the object~ center by means of interpolating cut con- stitute two feasible methods. The results obtained by the two methods agree well with the real position of a magnetic object.