Ученые Пермского Политеха разработали уникальную методику проектирования конструкции лопасти вертолета с управляемой геометрией
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![АЗЕРБАЙДЖАНЦЫ. Как они стали тюрками? / Этногенез [eng sub] @DAIV_official](https://sun9-29.userapi.com/Qny3PPlRe0NzqLUN0RIJa1QHYGJckqjQBNrpsA/puyaxjpleds.jpg)
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