Because design and operation and problem existing on the use, with the development of undertaking of communications and transportation, Huzhou city domestic to have armored concrete to be empty and ( real) heart plate girder bridge appear defect and disease of a certain degree.

  • 由于设计、施工和使用上存在的问题,随着交通运输事业的发展,我市境内既有钢筋混凝土空(实)心板梁桥均出现了一定程度的缺陷和病害。

  • 互联网摘选 2025-01-19 23:45:07

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