• This paper studied the application of fly ash on concrete sleeper with the method of ortho design.

    本文采用正交设计方法粉煤灰高强预应力混凝土轨枕中的应用进行了试验研究。

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  • The ductile iron baseplate shall permit to set up the clip or the clamp on the concrete sleeper.

    延性基板便于混凝土轨枕设置夹具

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  • A concrete sleeper capable of changing bent loop type fastener relates to a railway part.

    更换扣件混凝土轨枕涉及铁路部件

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  • A concrete sleeper capable of changing bent loop type fastener relates to a railway part.

    更换扣件混凝土轨枕涉及铁路部件

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