根据晶体的对称性、衍射几何和衍射规律，研究了复杂的发散X射线晶体衍射。
Acoording to the crystal symmetry, diffraction geometry and the diffraction laws, the complicated divergent beam X-ray diffraction has been studied.
晶体学家们一直认为所以的晶体都具有旋转对称性，这样当它们转动起来时候，从各方面来看都是一样的。
Crystallographers always believed that all crystals have rotational symmetry, so that when they are rotated, they look the same.
液态晶体的不对称性给了科学家们操纵它们的工具，现在LCD屏既便宜又常见。
Asymmetries in liquid crystals gave scientists the tools to manipulate them, and now LCD screens are cheap and ubiquitous.
应用推荐