 |
| |||
| initial cut; open pit mine trench (Polymath) | |||
| pioneer cut; stripping line; working trench | |||
| разрезная траншея: 3 phrases, 1 sujets |
| Exploitation minière | 3 |
|
| |||
| initial cut; open pit mine trench (Polymath) | |||
| pioneer cut; stripping line; working trench | |||
| разрезная траншея: 3 phrases, 1 sujets |
| Exploitation minière | 3 |