 |
| water quality monitoring: 17 phrases in 9 subjects |
| Caspian | 1 |
| Construction | 3 |
| Ecology | 6 |
| Electronics | 2 |
| Hydraulic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| Sakhalin | 1 |
| Technology | 1 |
| Water resources | 1 |
|
| water quality monitoring: 17 phrases in 9 subjects |
| Caspian | 1 |
| Construction | 3 |
| Ecology | 6 |
| Electronics | 2 |
| Hydraulic engineering | 1 |
| Natural resourses and wildlife conservation | 1 |
| Sakhalin | 1 |
| Technology | 1 |
| Water resources | 1 |