1·We first improve the complementary variational principle.
首先改进互补变分原理。
2·The foundation of the solving methods is the variational principle.
求解方法的基础是变分原理。
3·Regarding initial stresses as parameters, a variational principle of displacement is suggested.
用初应力作为参数，提出初应力位形上小变形问题的位移变分原理；
4·Some references indicated that the extremum in the Schrodinger variational principle is a minimum.
已有的一些文献指出，薛定谔变分原理中的极值是极小值。
5·The boundary integral terms of variational principle are cancelled mutually for the adjacent elements.
变分原理的边界积分项对于相邻单元互相抵消。
6·Based on discrete variational principle, the equations of motion for the discrete systems are established.
根据离散变分原理建立离散系统的运动方程。
7·The boundary integral terms of the variational principle are cancelled mutually for the adjacent elements.
变分原理的边界积分项对于相邻单元相互抵消。
8·By variational principle we obtain a system of differential equations and corresponding boundary conditions.
利用变分原理得到平衡微分方程组和相应的边界条件。
9·As we know, perturbed and optimization and variational principle play an important role in nonlinear analysis.
我们知道，扰动优化或变分原理在非线性分析领域中也起到了很大的作用。
10·Based on the sub-region generalized variational principle, the solving equations of the problem are derived directly.
根据分区广义变分原理，直接导出问题的求解方程式。