 |
| |||
| geologic time scale (GTS MichaelBurov); geological time scale (GTS MichaelBurov) | |||
| геологическая шкала: 8 phrases in 4 subjects |
| Drilling | 1 |
| Geology | 5 |
| Mining | 1 |
| Oilfields | 1 |
|
| |||
| geologic time scale (GTS MichaelBurov); geological time scale (GTS MichaelBurov) | |||
| геологическая шкала: 8 phrases in 4 subjects |
| Drilling | 1 |
| Geology | 5 |
| Mining | 1 |
| Oilfields | 1 |