 |
| |||
| проходка пустой породы (MichaelBurov) | |||
| driving tunnels: 17 phrases in 8 subjects |
| Bridge construction | 1 |
| Construction | 1 |
| General | 1 |
| Geology | 1 |
| Makarov | 3 |
| Mining | 2 |
| Oilfields | 1 |
| Technology | 7 |
|
| |||
| проходка пустой породы (MichaelBurov) | |||
| driving tunnels: 17 phrases in 8 subjects |
| Bridge construction | 1 |
| Construction | 1 |
| General | 1 |
| Geology | 1 |
| Makarov | 3 |
| Mining | 2 |
| Oilfields | 1 |
| Technology | 7 |