 |
| |||
| processing of minerals | |||
| segregation (на тяжелую и лёгкую фракции) | |||
| разделение минералов: 9 phrases in 4 subjects |
| Drilling | 1 |
| Geology | 4 |
| Mining | 3 |
| Technology | 1 |
|
| |||
| processing of minerals | |||
| segregation (на тяжелую и лёгкую фракции) | |||
| разделение минералов: 9 phrases in 4 subjects |
| Drilling | 1 |
| Geology | 4 |
| Mining | 3 |
| Technology | 1 |