| |||
| нормы и правила по системам отопления и вентиляции зданий | |||
|
mechanical code : 5 phrases in 4 subjects |
| Energy industry | 1 |
| Oil and gas technology | 1 |
| Technology | 2 |
| Weapons of mass destruction | 1 |
| |||
| нормы и правила по системам отопления и вентиляции зданий | |||
|
mechanical code : 5 phrases in 4 subjects |
| Energy industry | 1 |
| Oil and gas technology | 1 |
| Technology | 2 |
| Weapons of mass destruction | 1 |