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1,021 × 394 pixel
File size: 165 KB
MIME type: image/png
The file "2-free-electrons.png" has 1 identical duplication.
- 1-free-electrons.png . . Miga (talk | contribs) . . 08:48, 12 April 2016
- 2-free-electrons.png . . Miga (talk | contribs) . . 06:33, 14 April 2022