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有砟轨道
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有砟轨道
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工学
[轨道型式]
释
ballast track
有砟轨道
由钢轨、扣件、轨枕和散粒体碎石(或卵石、砂)道床、道岔及轨道加强设备组成的铁路轨道。是铁路上应用最早、使用范围最广的轨道结构形式,有较丰富的使用经验,成套的线路大修、维修机械和施工工艺。
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