 |
| вулканитовая: 10 phrases in 7 subjects |
| Chemistry | 1 |
| Geology | 1 |
| Mechanic engineering | 3 |
| Oil / petroleum | 1 |
| Silicate industry | 1 |
| Technology | 1 |
| Welding | 2 |
|
| вулканитовая: 10 phrases in 7 subjects |
| Chemistry | 1 |
| Geology | 1 |
| Mechanic engineering | 3 |
| Oil / petroleum | 1 |
| Silicate industry | 1 |
| Technology | 1 |
| Welding | 2 |