Drift dead end working face (Underground Mine and Shaft Works)
A 4 m drift module closed by a blasted rock face with a drilled round pattern, a broken muck pile at the toe and a face inspection light. One open drift port.
- 格式
- GLB
- 文件大小
- 80 KB
- 三角面
- 1,638
- 许可
- CC0 1.0