• Vibration characteristics of external tendons used on external prestressing concrete beams are detailedly calculated. Also the tested vibration characteristics of railway concrete beams are presented.

    详细计算了体外预应力混凝土常用型号体外索特性介绍铁路混凝土梁的实测自振频率。

    youdao

  • Vibration characteristics of external tendons used on external prestressing concrete beams are detailedly calculated. Also the tested vibration characteristics of railway concrete beams are presented.

    详细计算了体外预应力混凝土常用型号体外索特性介绍铁路混凝土梁的实测自振频率。

    youdao

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