Abbe doublediffraction principle

例句：

1. 1. Thedouble diffraction pattern of thecrystal is very complex.
   晶体的双折射图案非常复杂。
2. 2. The double diffractionphenomenon has been studied extensively in recent years.
   近年来，双折射现象已经得到了广泛的研究。
3. 3.The double diffraction method isa powerful tool for analyzing the structure ofmaterials.
   双折射方法是一种强大的工具，用于分析材料的结构。