• The two steel beams that support the upper roof are supported by only two points - the existing road and the column that rises at the bottom of the site.

    支撑屋顶钢梁两点支撑——已有路边从基地地面抬升支柱

    youdao

  • The two steel beams that support the upper roof are supported by only two points - the existing road and the column that rises at the bottom of the site.

    支撑屋顶钢梁两点支撑——已有路边从基地地面抬升支柱

    youdao

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