 |
|
Natural draft : 37 phrases in 19 subjects |
| Agriculture | 1 |
| Construction | 2 |
| Ecology | 2 |
| Electronics | 1 |
| Energy industry | 1 |
| Food industry | 1 |
| Forestry | 1 |
| General | 1 |
| Hydraulic engineering | 1 |
| Makarov | 1 |
| Mining | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Sakhalin | 2 |
| Silicate industry | 1 |
| Technology | 12 |
| Thermal engineering | 4 |