井下钻孔电阻率法岐离率确定采动工作面“三带”顶界面发育高度
闫国才

The mine drilling resistivity method used to determine the development height of the "three zones" top interface of the mining face
Guo-Cai YAN
图7 “三带”顶界面发育高度示意
Fig.7 The height of the “three belts” top interface development