 |
| |||
| защитная среда | |||
| защитная атмосфера | |||
| защитная газовая среда (I. Havkin) | |||
| atmosphère protectrice: 7 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Metallurgy | 3 |
| Technology | 1 |
| Welding | 1 |
|
| |||
| защитная среда | |||
| защитная атмосфера | |||
| защитная газовая среда (I. Havkin) | |||
| atmosphère protectrice: 7 phrases in 5 subjects |
| Chemistry | 1 |
| Construction | 1 |
| Metallurgy | 3 |
| Technology | 1 |
| Welding | 1 |