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current22:22, May 22, 2011Thumbnail for version as of 22:22, May 22, 2011756 × 529 (145 KB)TuningBEB2008 (Talk | contribs)
23:09, January 12, 2009Thumbnail for version as of 23:09, January 12, 2009674 × 472 (164 KB)Klow (Talk | contribs)==Summary== {{Information |attention= |description=Concept art for gigantic pistons in the Air Exchange reactor. |source=''Half-Life 2: Raising the Bar'' |author=Viktor Antonov |filespecs= |licensing={{Fairuse}} |other versions= |cat artist=[[

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