 |
| |||
| вентиляция естественная | |||
| ventilation natural: 16 phrases in 10 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Construction | 2 |
| Electronics | 1 |
| Firefighting and fire-control systems | 3 |
| Mining | 2 |
| Nautical | 1 |
| Oilfields | 1 |
| Sakhalin | 2 |
| Technology | 2 |
|
| |||
| вентиляция естественная | |||
| ventilation natural: 16 phrases in 10 subjects |
| Automobiles | 1 |
| Bridge construction | 1 |
| Construction | 2 |
| Electronics | 1 |
| Firefighting and fire-control systems | 3 |
| Mining | 2 |
| Nautical | 1 |
| Oilfields | 1 |
| Sakhalin | 2 |
| Technology | 2 |