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| система отопления и вентиляции: 39 phrases in 15 subjects |
| Automobiles | 2 |
| Construction | 5 |
| Drilling | 1 |
| Energy industry | 5 |
| Firefighting and fire-control systems | 1 |
| General | 3 |
| Makarov | 1 |
| Molikpaq | 10 |
| Oil / petroleum | 1 |
| Oil and gas | 4 |
| Sakhalin R | 1 |
| Technology | 2 |
| Thermal engineering | 1 |
| Transport | 1 |
| United Nations | 1 |