 |
| |||
| universal sewerage system | |||
| water-borne sewerage; conventional sewage; waterborne sewer | |||
| combined sewerage system | |||
| one-pipe system | |||
| общесплавная система канализации: 6 do fraz, 4 tematyki |
| Budownictwo | 1 |
| Ekologia | 3 |
| Makarowa | 1 |
| Zaopatrzenie w wodę | 1 |
|
| |||
| universal sewerage system | |||
| water-borne sewerage; conventional sewage; waterborne sewer | |||
| combined sewerage system | |||
| one-pipe system | |||
| общесплавная система канализации: 6 do fraz, 4 tematyki |
| Budownictwo | 1 |
| Ekologia | 3 |
| Makarowa | 1 |
| Zaopatrzenie w wodę | 1 |