 |
|
drainage system : 146 phrases in 37 subjects |
| Agrochemistry | 1 |
| Architecture | 2 |
| Aviation | 2 |
| Bridge construction | 2 |
| British usage, not spelling | 1 |
| Business style | 1 |
| Construction | 24 |
| Ecology | 10 |
| Electronics | 3 |
| Energy industry | 1 |
| Environment | 2 |
| European Union | 1 |
| Firefighting and fire-control systems | 2 |
| General | 7 |
| Geology | 5 |
| Hydrology | 1 |
| Informal | 2 |
| Logistics | 1 |
| Makarov | 30 |
| Medical | 1 |
| Medical appliances | 5 |
| Nautical | 3 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 3 |
| Polymers | 1 |
| Road construction | 2 |
| Road works | 1 |
| Sakhalin | 6 |
| Sakhalin A | 1 |
| Sakhalin S | 2 |
| Soviet | 1 |
| Space | 2 |
| Technology | 6 |
| Tengiz | 1 |
| Thermal engineering | 1 |
| Water resources | 10 |
| Water supply | 1 |