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低空“飞铁”振翅欲飞
中国高铁“中国速度”,350公里的运营时速令全球为之赞叹——可你敢想象吗?未来我国还有可能进入“飞铁时代”,飞行器借助一根线缆与轨道连接,靠电力在100米以上的低空高速飞翔,成本较普通燃油飞机大幅降低,速度较现有高铁将再上台阶。
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