 |
| water drainage: 79 phrases in 31 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Construction | 8 |
| Ecology | 10 |
| Electronics | 1 |
| Environment | 1 |
| Food industry | 1 |
| Gas processing plants | 2 |
| General | 4 |
| Geophysics | 1 |
| Hydraulic engineering | 1 |
| Hydrogeology | 1 |
| Hydrography | 1 |
| Hydrology | 1 |
| Landscaping | 1 |
| Logistics | 1 |
| Makarov | 7 |
| Medical | 1 |
| Mining | 5 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 3 |
| Oil and gas technology | 2 |
| Oilfields | 2 |
| Petrography | 2 |
| Sakhalin | 4 |
| Sociology | 2 |
| Technology | 8 |
| Water resources | 2 |
| Weapons of mass destruction | 2 |