File:efficiency.png
efficiency.png (329 × 214 pixels, file size: 11 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:06, 10 November 2014 | 329 × 214 (11 KB) | DgbrtBOT (talk | contribs) |
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