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。
2
Complete reflection of a ray of light in a medium such as water or glass, from the surrounding surfaces Back into the medium.
在一种媒质（如水或玻璃）中的光线从媒质的边界完全反射回媒质内部的现象。
3
Error effect in depth of diffraction pattern of X rayreflection zone plate has been studied.