Equation expresses the principle of minimum potential energy.
方程表示出最小势能原理。
Meanwhile, the bending of a rectangular plate with complicated boundary conditions is calculated by the principle of minimum potential energy with mixed variables.
同时，应用混合变量的最小势能原理于计算一复杂边界条件矩形板的弯曲。
Applying the principle of minimum total potential energy, the spline subdomain method of folded plate structures is derived.
应用最小势能原理，建立了折板结构分析的样条子域法。
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