 |
| |||
| rilling; rill cut stoping; overhand stoping in inclined floors; rill cut mining; rill stoping; rillcut stoping | |||
| rill cutting | |||
| выемка диагональными слоями: 3 phrases, 1 sujets |
| Exploitation minière | 3 |
|
| |||
| rilling; rill cut stoping; overhand stoping in inclined floors; rill cut mining; rill stoping; rillcut stoping | |||
| rill cutting | |||
| выемка диагональными слоями: 3 phrases, 1 sujets |
| Exploitation minière | 3 |