With the reasonable included Angle, the inclination of ribs can improve the lateral stability of arch efficiently.

在合理内倾角度下，拱肋内倾可以有效地提高拱的横向稳定性。

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With the reasonable included Angle, the inclination of ribs can improve the lateral stability of arch efficiently.

在合理内倾角度下，拱肋内倾可以有效地提高拱的横向稳定性。

youdao