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文章简单介绍了开滦局自1984年以来,采用磁偶源系统、钻孔无线电波透视、坑道无线电波透视、直流电测深几种方法的效果。
The article briefly introduces the effects of several methods of Kerry Bay Bureau since 1984, including the use of magnetic dipole source system, drilling radio wave perspective, tunnel radio wave and direct current sounding.