Crystal etching, a traditional method to study the crystal symmetry and crystal defects, should be a new application in modern mineralogy.
矿物晶体腐蚀像是一种研究晶体对称、晶格缺陷等传统的方法。
Acoording to the crystal symmetry, diffraction geometry and the diffraction laws, the complicated divergent beam X-ray diffraction has been studied.
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。
The form of a four-rank tensor with the particular intrinsic symmetry for a variety of crystal symmetry is given by the use of the group theory method.
用群论方法给出了一种具有特殊本征对称性的四阶张量在各点群晶体中的形式，并将其应用于声光散射转动效应的研究，获得了有意义的结果。
The present paper discussed some possible translational types in detail, and derived the elements of the pseudo-symmetry for the low symmetry crystal systems (74 space groups).
本文着重分析了可能出现的平移赝对称形式，并以低级晶系所属的74个空间群为例导出了赝对称形式。
Neglecting magnetic intensity higher than quadratic terms, various parameters in phenomenological formula for cubic symmetry crystal are calculated from our experimental data.
在略去高于磁场强度二次项的情况下，从实验结果计算出立方对称晶体唯象公式中的诸参数。
The author attempts to illustrate that the order-disorder of crystal structure, and the isomorphism may be explained by the conception of colour symmetry.
用有色对称的理论解释了晶体结构中的有序-无序和某些类质同像替换等现象。
It consists of two parallel polarizers, an electro-optical crystal and a birefringent crystal with radial symmetry.
该光瞳滤波器由两个平行偏光镜，一个电光晶体与一个径向对称双折射晶体组成。
We intentionally render the rotational axis of growing crystal to deviate from the symmetry axis of the temperature field, the temperature fluctuations with sinusoidal form in meniscus are produced.
使晶体转轴与温场对称轴不一致，则在晶体弯月面内会产生随时间变化的正弦波式的温度分布。
The crystallographic problems of two-dimensional crystal, such as the matrix expression, the symmetry and the systematic absence law of the crystal's X-ray diffraction, are studied.
对二维晶体的矩阵表示、对称性及其对X射线衍射的系统消光规律进行了研究，得到并证明了二维晶体的矩阵表示的二个定理和二维晶体对X射线衍射的系统消光定理。
The new energy band program for One - D macrocyclic molecular crystal with Cn symmetry was designed by use for the first time.
首次设计了适用于一维具有旋转对称性的大环分子的能带程序。
Some combinations of simultaneous equations for obtaining lattice constants of low-symmetry crystal systems can lead to a serious accumulation of errors and the formation of abnormal state equations.
求解低对称晶系晶胞参数的联立方程组的某些组合可使误差严重积累，构成病态方程组。
The affection of TM is discussed when the dielectric cylinder are rotated. The result is that not only the crystal rotational symmetry but also the dielectric constant can affect the band gap of TM.
讨论了旋转操作下TM模式带隙的变化情况，通过计算发现TM模式的带隙不仅受到晶体旋转对称性的影响同时也受内部结构介电常数的影响。
The optical element forms dual mode structure in low symmetry. The invention raises structural performance band gap of photon crystal, and obtains even structure of photon crystal in large area.
能形成低对称性的双模结构，有利于光子晶体带隙结构性能的提高，获得大面积均匀的光子晶体结构。
The exact rotational correction of the scattering tensor related to general acoustic modes and pure modes in the higher symmetry directions, for different crystal systems, is presented.
给出了各晶系晶体一般声学模及高对称方向纯模的散射张量转动修正的确切形式。
Those crystal planes should be selected such that their Miller indices are lower and the planes have high symmetry.
选择这样几组晶面，使它们的密勒指数较低且具有对称性。
The model of the defect of 1-D photonic crystal, which is defect in symmetry, is set up based on the solution of eigen matrix.
文章针对特征矩阵施行初等变换，提出了求出矩阵特征值和特征向量的一种方法，从而以简捷的方式将矩阵相似对角化。
It is pointed out that the demonstration is right on the nonexistence of 5-fold and greater than (6-fold) symmetry axis in crystal lattice by double axis.
指出晶格不具备五度及六度以上对称轴的双轴证明是正确的。
It is pointed out that the demonstration is right on the nonexistence of 5-fold and greater than (6-fold) symmetry axis in crystal lattice by double axis.
指出晶格不具备五度及六度以上对称轴的双轴证明是正确的。
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