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煤矿老窑采空区地—井TEM响应特征
张建智1(), 胡富杭2, 刘海啸1, 邢国章3
TEM response characteristics of borehole in goaves of old coal mines
ZHANG Jian-Zhi1(), HU Fu-Hang2, LIU Hai-Xiao1, XING Guo-Zhang3

图3. 磁性源地—井TEM装置示意

Fig.3. Schematic diagram of magnetic source well TEM device