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Invisible challenges
Major parts of the water and sewer infrastructure were built over 60 years ago. In many larger cities, the population has doubled in that...
| Licens | Användning i media |
|---|---|
| Ladda ner | |
Storlek854 x 480 px |
|
Major parts of the water and sewer infrastructure were built over 60 years ago. In many larger cities, the population has doubled in that...
| Licens | Användning i media |
|---|---|
| Ladda ner | |
Storlek854 x 480 px |
|