“variational principles of elastic mechanics”的概念、定义、翻译、参考文献-科学参考

单词	variational principles of elastic mechanics
释义	variational principles of elastic mechanics Encyclopedia 工学弹性力学释 variational principles of elastic mechanics弹性力学变分原理将弹性力学基本方程的定解问题转换为求解泛函的极值或者驻值问题。
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