晶体的点阵常数是晶体的重要参数，它的改变是极细微的。
The crystal lattice constant is an important parameter of the crystal and it changes extremely slightly.
掺镁浓度对晶体相匹配温度、相匹配角、光学均匀性、点阵常数和密度的影响。
The influence of Mg concentration in doping on phase matching temperature, phase matching Angle, optical homogeneity, lattice parameter and density of the crystal is also stated.
可以通过以下方法来选择带隙的波长：排列周期性空位，使得其点阵常数等于带隙波长的一部分。
The bandgap wavelength can be chosen by arranging the periodic array of voids to have a lattice constant a fraction of the bandgap wavelength.
对于非专业X 射线晶体结构人员，只要得到材料衍射图谱后，能很方便计算点阵常数和衍射线指标化。
If they have the X-ray powder diffraction patternsof materials, even if being non-expert on X-ray crystal structure, they can conveniently get the index of diffraction lines and cell parameters.
对于非专业X 射线晶体结构人员，只要得到材料衍射图谱后，能很方便计算点阵常数和衍射线指标化。
If they have the X-ray powder diffraction patternsof materials, even if being non-expert on X-ray crystal structure, they can conveniently get the index of diffraction lines and cell parameters.
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