... Absolute value function 绝对值方程 Constant of variation 变分常数 Dependent variation 相关变分 ...
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method of variation of constant [数] 常数变易法
variation of constant formula [数] 常数变易公式
methods of constant variation 常数变易法
a method of constant variation 常数变易法
the method of constant variation 常数变易法
variation of constant 常数变易公式
variation of constant method 常数变易法
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
本文根据光线轨迹方程，讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
A small variation of the Verdet constant with temperature that was associated with the volume expansion of the sample was observed.
观测到费尔德常数随温度的微弱变化，而这种变化是同样品的体积膨胀相联系的。
Moreover, the expansion ratio of scale factor and the variation ratio of string coupling constant are calculated.
另外，计算了标度因子的膨胀比和弦耦合常数的变化比。
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