equation of variation

• 变分方程

equation of variation的用法和样例：

例句

1. The method was over ten times more rapid than the volumetric integral equation method.
   缺陷的重构速度比用体积分方程法提高十倍以上。
2. These results generalize and improve some known results about both neutral and delay difference equation.
   所有结果推广和改进了关于中立和时滞差分方程已有结果。