• 桁式组合拱桥 - 引用次数：16

  Clearly, such a timely manner to the critically dangerous trussed combination arch bridge maintenance has been reinforced and no delay now.

  可见,及时地对这类病危桁式组合拱桥进行加固维修有着十分重要的意义。

  参考来源 - 桁式组合拱桥加固技术研究

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