 |
| |||
| восстановительный обжиг | |||
|
reduction roasting : 8 phrases in 4 subjects |
| Cement | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 4 |
|
| |||
| восстановительный обжиг | |||
|
reduction roasting : 8 phrases in 4 subjects |
| Cement | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 4 |