Grafen – det nya supermaterialet
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![ТРАГЕДИЯ ГРАФА ДУКУ - ПОЧЕМУ ОН ОТВЕРНУЛСЯ ОТ ДЖЕДАЕВ? [Полная История]](https://sun9-39.userapi.com/KrJ7Rt1xjJXY6E3Cz6RR_H3nlCMhKJmVvey2Ng/XctAnTc-9-4.jpg)
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