drainage area: 45 phrases in 21 subjects |
Agriculture | 1 |
Construction | 3 |
Ecology | 3 |
Electronics | 3 |
General | 1 |
Geography | 2 |
Hydraulic engineering | 1 |
Hydrology | 4 |
Makarov | 4 |
Mining | 1 |
Natural resourses and wildlife conservation | 3 |
Oil / petroleum | 3 |
Oil and gas | 1 |
Oil and gas technology | 4 |
Oilfields | 1 |
Production | 1 |
Sakhalin | 1 |
Technology | 2 |
Water resources | 4 |
Water supply | 1 |
Wood processing | 1 |