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The educational model for our bio-sand filter technology in Tavela Garhi
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:37, 31 July 2018 | | 3,024 × 4,032 (7.87 MB) | Ken.Dred Spirit (talk | contribs) | The educational model for our bio-sand filter technology in Tavela Garhi |
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