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MIME type: application/vnd.ms-powerpoint
The file "Liquid_Crystals.pptx" has 1 identical duplication.
- Liquid Crystals.pptx . . Анастасия (talk | contribs) . . 23:28, 26 May 2013
- Liquid Crystals.pptx . . Анастасия . . 23:28, 26 May 2013