频率域电磁法在煤矿采空区调查中的应用
姜国庆
1,
2
, 贾春梅
3
, 谭强
4
, 尚通晓
1,
2
, 朱首峰
1,
2
Application of fdem in detecting coal mined-out areas
JIANG Guo-Qing
1,
2
, JIA Chun-Mei
3
, TAN Qiang
4
, SHANG Tong-Xiao
1,
2
, ZHU Shou-Feng
1,
2