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
Proposee the design scheme of fabric symmetrical weaves, including methods of rotation, translation, reflection and sliding reflection etc.
介绍织物具有平面对称性组织的设计方法，包括旋转、平移、反射和滑动反射等对称的设计。
3
At the same time, the light reflection control and the symmetrical and steady dispersion of tracer particles are the key factors of the PIV measurement.