• The compactness of concrete is an important factor that affects concrete's durability and impermeability.

    混凝土密实度混凝土耐久性抗渗性一个重要指标。

    youdao

  • The compactness of concrete is an important factor that affects concrete's durability and impermeability.

    混凝土密实度混凝土耐久性抗渗性一个重要指标。

    youdao

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