利用这些公式，可以简便地用于判定一次电流场异常成分的一些空间分布规律，对于正确认识异常场的形态特征颇有益处。
These formulas can be used quite simply to determine the spatial distribution of the anomaly of the primary field, which is very helpful in recognizing the characteristics of anomaly field.
利用这些公式，可以简便地用于判定一次电流场异常成分的一些空间分布规律，对于正确认识异常场的形态特征颇有益处。
These formulas can be used quite simply to determine the spatial distribution of the anomaly of the primary field, which is very helpful in recognizing the characteristics of anomaly field.
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