suspended solids: 75 phrases in 22 subjects |
Caspian | 1 |
Chemistry | 3 |
Construction | 4 |
Ecology | 18 |
Electronics | 2 |
Energy industry | 9 |
Hydrology | 1 |
Makarov | 2 |
Military | 1 |
Nanotechnology | 1 |
Natural resourses and wildlife conservation | 6 |
Oceanography & oceanology | 2 |
Oil / petroleum | 3 |
Oil and gas | 4 |
Pulp and paper industry | 1 |
Sakhalin | 2 |
Sewage and wastewater treatment | 1 |
Technology | 2 |
Tengiz | 1 |
Water resources | 3 |
Water supply | 3 |
Weapons of mass destruction | 5 |