 |
| |||
| агрегат аммиака (АнастасияН) | |||
| ammonia unit: 15 phrases in 5 subjects |
| Bridge construction | 1 |
| General | 1 |
| Oilfields | 1 |
| Refrigeration | 9 |
| Technology | 3 |
|
| |||
| агрегат аммиака (АнастасияН) | |||
| ammonia unit: 15 phrases in 5 subjects |
| Bridge construction | 1 |
| General | 1 |
| Oilfields | 1 |
| Refrigeration | 9 |
| Technology | 3 |