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道岔区板式无砟道床结构 桥梁地段道床结构由道岔板、水泥乳化沥青砂浆充填层、底座、滑动

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道岔区板式无砟道床结构 桥梁地段道床结构由道岔板、水泥乳化沥青砂浆充填层、底座、滑动层、高强度挤塑板、侧向挡块及弹性限位板等部分组成。

对

错

参考答案:

A

高铁线路工

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