• 高度共轭笼状结构的碳素体,分子结构共价碳碳双键是富电子区,反应性能烯烃有类似性,主要表现双键加成。

    C_(60) is one kind of fullerene with high conjugated cage-types structure. Its covalence between two hexagons has high reactivity, which behaves as addition reaction of double bond.

    youdao

  • 实际地震作用钢筋混凝土结构反应常常呈现明显的空间效应:框架角柱变化双向弯曲存在复杂耦合作用

    The reinforced concrete has an obvious steric effect in real earthquakes. There is a complicated coupling between the axis force and compound bending which change in side columns and angle posts.

    youdao

  • 实际地震作用钢筋混凝土结构反应常常呈现明显的空间效应:框架角柱变化双向弯曲存在复杂耦合作用

    The reinforced concrete has an obvious steric effect in real earthquakes. There is a complicated coupling between the axis force and compound bending which change in side columns and angle posts.

    youdao

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