 |
| |||
| high capacity filter; high-rate filter; rapid filter; sand filter | |||
| high-rate trickling filter (в водоснабжении) | |||
| скорый фильтр: 8 phrases in 6 subjects |
| Building structures | 1 |
| Ecology | 2 |
| General | 1 |
| Makarov | 2 |
| Oil / petroleum | 1 |
| Water supply | 1 |
|
| |||
| high capacity filter; high-rate filter; rapid filter; sand filter | |||
| high-rate trickling filter (в водоснабжении) | |||
| скорый фильтр: 8 phrases in 6 subjects |
| Building structures | 1 |
| Ecology | 2 |
| General | 1 |
| Makarov | 2 |
| Oil / petroleum | 1 |
| Water supply | 1 |