 |
| |||
| under an inert gas (Petrelnik) | |||
| в атмосфере инертного газа: 12 phrases in 8 subjects |
| Electronics | 1 |
| Energy industry | 1 |
| Makarov | 2 |
| Mathematics | 1 |
| Metallurgy | 2 |
| Pipelines | 1 |
| Refrigeration | 2 |
| Welding | 2 |
|
| |||
| under an inert gas (Petrelnik) | |||
| в атмосфере инертного газа: 12 phrases in 8 subjects |
| Electronics | 1 |
| Energy industry | 1 |
| Makarov | 2 |
| Mathematics | 1 |
| Metallurgy | 2 |
| Pipelines | 1 |
| Refrigeration | 2 |
| Welding | 2 |