等值反磁通瞬变电磁法在城市地质调查中的应用
何胜, 王万平, 董高峰, 南秀加, 魏丰丰, 白勇勇

Application of the opposing-coils transient electromagnetic method in urban geological surveys
HE Sheng, WANG Wan-Ping, DONG Gao-Feng, NAN Xiu-Jia, WEI Feng-Feng, BAI Yong-Yong
图3 等值反磁通瞬变电磁法W1剖面原始二次场剖面(a)及综合成果(b)
Fig.3 Original secondary field profile(a) and comprehensive result map(b) of OCTEM W1 section