The band structures of square lattice photonic crystal and hexagonal lattice photonic crystal have been computed in the second chapter.
在前人研究的基础上，我们对二维正方晶格和六方晶格光子晶体缺陷的带结构进行了计算。
Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) indicate that nano crystalline diamonds have hexagonal lattice and cubic lattice.
透射电镜(TEM)和高分辨电镜(HREM)分析表明，所制备的纳米晶金刚石为立方金刚石和六方金刚石晶体。
These hexagonal walls use the least material to create a lattice of cells in the most efficient manner.
六边形的结构可以最少的材料和最有效的方式搭建出晶格状的空间。
The geometric parameters, the hexagonal side length and the lattice period of the metal dendritic array units are reasonably designed to generate electromagnetic resonance.
合理地设计金属树枝单元的几何参数，六边形边长以及晶格周期，产生电磁谐振。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.4% less than that for a rectangular sampling lattice.
当连续图像信号的频带处于一个圆形区域之内时，正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13.4%。
XRD indicated that the main phase of the resulting microcrystalline Mg remained the hexagonal crystal structure and the lattice constants keep the same values with the pure microcrystalline Mg.
射线衍射表明，其主物相仍然是六方晶系的微晶镁，晶胞常数与微晶镁相同。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.
当连续图像信号的频带处于一个圆形区域之内时，正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13。
However, when the signal is a circularly band-limited, the minimum sampling density for a hexagonal sampling lattice is 13.
当连续图像信号的频带处于一个圆形区域之内时，正六边形点阵结构的采样密度比矩形点阵结构的采样密度要降低13。
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