 |
| head water: 145 phrases in 42 subjects |
| Agrochemistry | 1 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Caspian | 1 |
| Cement | 1 |
| Combustion gas turbines | 1 |
| Construction | 14 |
| Drilling | 1 |
| Ecology | 2 |
| Electronics | 4 |
| Energy industry | 4 |
| Figurative | 1 |
| Figure of speech | 1 |
| Firefighting and fire-control systems | 2 |
| Forestry | 1 |
| General | 21 |
| Geology | 6 |
| Hydraulic engineering | 4 |
| Hydrology | 3 |
| Idiomatic | 4 |
| Informal | 2 |
| Makarov | 24 |
| Military | 4 |
| Mining | 4 |
| Nautical | 2 |
| Nuclear and fusion power | 1 |
| Oceanography & oceanology | 2 |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
| Oilfields | 1 |
| Proverb | 2 |
| Pulp and paper industry | 1 |
| Rail transport | 3 |
| Road works | 1 |
| Sakhalin | 1 |
| Seismology | 1 |
| Slang | 1 |
| Technology | 12 |
| Thermal engineering | 1 |
| Transport | 1 |
| Water polo | 1 |
| Water resources | 2 |