• 2022-06-28
    《规范》规定,预应力钢筋的张拉控制应力不宜超过规定的张拉控制应力限值,且不应小于
    A: [img=50x25]18039144aa0a91b.png[/img]
    B: [img=50x25]18039144b2cdec8.png[/img]
    C: [img=50x25]18039144bb56e46.png[/img]
    D: [img=50x25]18039144c3795f8.png[/img]
  • 举一反三