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German officials launched the world's first fleet of hydrogen-powered passenger trains Wednesday. The 14 trains use hydrogen fuel cells to generate electricity that powers the engines. The German government has backed expanding the use of hydrogen as a clean alternative to fossil fuels.

德国官方周三推出了世界上第一支氢动力客运列车车队。这14列火车使用氢燃料电池发电，为发动机提供动力。德国政府支持扩大使用氢气作为化石燃料的清洁替代品。