In the exploration process for harnessing and renovating local railways in Shanxi,the interborehole electromagnetic wave fluoroscopy was used to search for mined out area of coal pits,which yielded satisfactory geological effects.
王文龙. 孔中电磁波透视在煤窑采空区勘探中的应用实例[J]. 物探与化探, 1999, 23(4): 314-316.
Wang Wenlong . THE APPLICATION OF BOREHOLE ELECTROMAGNETIC WAVE FLUOROSCOPY TO THE EXPLORATION OF MINED OUT AREAS OF COAL PITS. Geophysical and Geochemical Exploration, 1999, 23(4): 314-316.