First, the fundamental equations of flat membrane structures are obtained by applying the non-moment theory of thin shallow shells.

首先，利用扁壳的无矩理论得到了平坦薄膜结构的基本力学方程。

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First, the equations of vibration were established using the theory of thin shallow shells.

首先利用扁壳体理论建立了大跨柔性屋盖的振动方程。

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First, the equations of vibration were established using the theory of thin shallow shells.

首先利用扁壳体理论建立了大跨柔性屋盖的振动方程。

youdao