非正规开采小煤窑采空区勘察工作思路探讨 / Discussion on Working Idea for Survey of Informal Mining in Small Coal Pits Goaf
- Resource Type
- Academic Journal
- Source
- 西部探矿工程 / West-China Exploration Engineering. 29(11):129-135
- Subject
非正规开采 小煤窑 采空区勘察 工作思路 - Language
- Chinese
- ISSN
- 1004-5716