奥灰峰峰组顶部阻水特征及其水文地质意义 / Water blocking characteristics at the top of Ordovician Fengfeng formation and its hydrogeological significance
- Resource Type
- Academic Journal
- Source
- 煤矿现代化 / Coal Mine Modernization. 31(4):46-53
- Subject
带压开采 峰峰组 相对隔水层 防治水策略 - Language
- Chinese
- ISSN
- 1009-0797