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Actiunea freonilor asupra stratului de ozon.ppsx Nov 13, 2011 5:33 am Presentation (application/vnd.openxmlformats-officedocument.presentationml.slideshow) 644.3 KB SimionovAlexandru SimionovAlexandru
Actiunea freonilor asupra stratului de ozon.ppsx Nov 13, 2011 4:53 am Presentation (application/vnd.openxmlformats-officedocument.presentationml.slideshow) 644.3 KB SimionovAlexandru SimionovAlexandru
Actiunea freonilor asupra stratului de ozon.ppsx Nov 13, 2011 4:46 am Presentation (application/vnd.openxmlformats-officedocument.presentationml.slideshow) 644.3 KB SimionovAlexandru SimionovAlexandru