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https://www.rtflash.fr/drone-chinois-...laser-peut-voler-indefiniment/article
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https://www.rtflash.fr/drones-hydrogene-arrivent/article
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https://www.cnetfrance.fr/news/ce-dro...nt-deux-heures-d-affilee-39873469.htm
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https://humanoides.fr/2016/01/1er-qua...imente-a-lhydrogene-qui-vole-4-heures
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http://www.futura-sciences.com/magazi...hydrogene-pourrait-voler-heures-60886
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http://www.technologyreview.com/news/...urveillance-drone-never-needs-to-land
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