Diffraction direction of a ray passing a crystal for symmetrical or asymmetrical reflection is calculated from the vector form of Laue diffraction equation.

根据劳厄衍射方程的矢量形式计算光线经对称或非对称晶体衍射后的方向。

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It is a difficult point to teach the students solving the wave equation on finite interval by the reflection law of the wave.

用波的反射原理求解有限区间上的波动方程是数学物理方程中的基本内容，也是教学中的难点内容。

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This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.

该算法使用射线追踪计算传播时间，应用波场界面方程计算反射振幅。

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The purity of the supply and demand equation in the muni market and its resulting reflection on interest rate levels is where the wheat will be separated from the chaff and what investors need to embrace as their new bellwether.

FORBES: Move Over Treasuries, Muni Bonds Are The New Bellwether