 |
| |||
| разности (MichaelBurov); петротипы (MichaelBurov) | |||
| |||
| тип породы | |||
| минеральный состав руды (Jewelia) | |||
| Rock Type: 25 phrases in 12 subjects |
| Aviation | 1 |
| Construction | 1 |
| Drilling | 2 |
| Electronics | 1 |
| Geology | 3 |
| Gold mining | 4 |
| Makarov | 1 |
| Mining | 1 |
| Oil / petroleum | 3 |
| Oilfields | 2 |
| Petrography | 1 |
| Technology | 5 |