 |
| |||
| surface drainage system (lxu5) | |||
| поверхностный водосбор: 7 phrases in 5 subjects |
| Ecology | 2 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| Water resources | 2 |
| Water supply | 1 |
|
| |||
| surface drainage system (lxu5) | |||
| поверхностный водосбор: 7 phrases in 5 subjects |
| Ecology | 2 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| Water resources | 2 |
| Water supply | 1 |