egrets@lemmy.world to

BestOfLemmy@lemmy.worldEnglish · 2 个月前

Why upgrading existing train tracks to high-speed is a costly challenge

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Why upgrading existing train tracks to high-speed is a costly challenge

egrets@lemmy.world to

BestOfLemmy@lemmy.worldEnglish · 2 个月前

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TIL the UK built a working hovertrain prototype in the 1970s and then abandoned it - Lemmy.World

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