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时域电磁法勘探，从理论上说具有压制低阻覆盖层影响、勘探深度较大的优点。但在我国实践的情况如何，有何实例，实为广大物探工作者更为关心。本文仅就DCM-1系统在埋深较大的矿体上所做第一个实例予以报导，说明在我国只要地球物理前提符合理论要求，脉冲瞬变场法的勘探深度必然是较深的，这是本文所叙述的目的之一。
Time-domain electromagnetic exploration, in theory, has the effect of suppressing the impact of low-resistance cover, exploration depth greater advantages. However, what is the actual situation in our country? What are the examples? It is actually more concerned with the majority of geophysical workers. This paper reports only the first example of the DCM-1 system on the deeper burial ore body, which shows that the exploration depth of the impulse transient field method must be deep as long as the geophysical requirements in our country meet the requirements of the theory. This is one of the purposes described in this article.