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利用电磁波在地下的传播特性,进行普查和勘探有用矿产和解决工程问题的想法在无线电发明不久就产生了。苏联等于1923年就开始研制各种不同的无线电波法,不仅用于普查勘探,而且还用于解
The idea of exploiting the propagation properties of electromagnetic waves underground and conducting surveys and explorations of useful minerals and engineering problems was born shortly after radio was invented. The Soviet Union started to develop various radio wave laws in 1923, not only for census exploration but also for solution