14307工作面4号煤正巷和切眼支护优化设计研究 / Study on Optimal Design of the No. 4 Coal Roadway and Hole-cutting Support in the 14307 Working Face
- Resource Type
- Academic Journal
- Source
- 山东煤炭科技 / Shandong Coal Science and Technology. 40(4):4-9
- Subject
煤层 巷道 支护 优化 - Language
- Chinese
- ISSN
- 1005-2801