 |
| |||
| sanitary sewage | |||
| сточные фекальные воды: 15 phrases in 7 subjects |
| Construction | 6 |
| Ecology | 1 |
| Electronics | 1 |
| Hydrology | 1 |
| Natural resourses and wildlife conservation | 4 |
| Oil / petroleum | 1 |
| Water supply | 1 |
|
| |||
| sanitary sewage | |||
| сточные фекальные воды: 15 phrases in 7 subjects |
| Construction | 6 |
| Ecology | 1 |
| Electronics | 1 |
| Hydrology | 1 |
| Natural resourses and wildlife conservation | 4 |
| Oil / petroleum | 1 |
| Water supply | 1 |