File: Trickling filter bed 2 w.JPG
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:53, 7 September 2006 | | 1,024 × 768 (320 KB) | Dinshaw Dadachanji (talk | contribs) | [http://en.wikipedia.org/wiki/Image:Trickling_filter_bed_2_w.JPG source and rights] |
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