Classification of crystallographic groups in the 4-dimentional indefinite space;
四维不定空间中晶体群的分类
In the present paper we will classify all crystallographic groups associated with W up to conjugation in the affine group A(.
设V是3-维不定空间,W是V中某个不可约根系的无限Weyl群,本文在仿射群A(V)中共轭的意义下,给出了点群为W的晶体群的分类。
The crystallographic groups associated with W up to conjugation in the affine group A(V) are classified.
设V是 5维不定空间 ,W是V中某个不可约根系的无限Weyl群 ,在仿射群A(V)中共轭的意义下 ,给出了点群为W的晶体群的分类。
Based onthe previous works, the longitudinal piezoelectric constant d_(33), electromechanical factor k_(33) of 3m point group crystals LiNbO_3, LiTaO_3 and PZT60/40 were summed up.
在以前的工作基础上 ,对LiNbO3 、LiTaO3 和PZT6 0 / 4 0等 3m点群晶体纵向压电系数d3 3 及机电耦合系数k3 3 在空间分布的共同规律进行了归纳总结 ,发现它们在空间中的分布具有明显的各向异性 ,并存在着一些特殊方向 ,沿这些方向 ,晶体的压电性能有较大幅度的提高。
The Visualization of 3D Tiling Patterns with the Symmetries of Planar Crystallographic Groups and the Extended Modular Group;
具有平面晶体群和扩张模群对称的三维镶嵌图的计算机可视化
Less perfect forms, known as "boat" and "carbonado" are clusters of tiny crystals.
稍次些的则由细小的晶体群组成，称为“圆粒钻石”和“黑钻石”。
crystallographic space groups
晶体学空间群[共230种]
Symmetry, Subgroups and Supergroups of Quasicrystallographic Point Groups;
准晶体学点群的对称性及其母子群关系链
The Simulation Analysis of Slow Light and Group Velocity Dispersion in Photonic Crystal Waveguides
光子晶体波导中的群速减慢及群速色散
Group Theory Analysis of Lattice Vibrations and Raman Spectrum of the K_2La(NO_3)_5. 2H_2O Crystal
二水硝酸镧钾晶体晶格振动的群论分析和拉曼光谱
The Simulation Analysis of Controllable Group-Velocity of Two Dimension Photonic Crystal Waveguides;
二维光子晶体波导群速可控特性仿真分析
Comparision on detection rates of lens opacification among three groups of occupational crowds;
三种职业人群晶状体混浊检出率的比较
Dependence of Acoustic Band-gaps in Two-dimensional Phononic Crystals on Symmetric Groups
二维声子晶体能带带隙与对称群的关系
The computer expression and interactive design of crystallographic point groups
晶体学点群的计算机表达及交互式设计
transistor-transistor logic
晶体管-晶体管逻辑电路
TTL [Transistor-Transistor Logic]
电晶体-电晶体逻辑线路
CTTL (Complementary Transistor -Transistor Logic)
互补晶体管-晶体管逻辑
TTL Transistor-Transistor Logic
晶体管to晶体管逻辑电路
transistor-transistor logic gate
晶体管－晶体管逻辑门
HUANGHOITE-(Ce), BaCe(CO_3)_2F, FROM KHIBINA,KOLA PENINSULA, RUSSIA: REDETERMINATION OF THE CRYSTAL STRUCTURE WITH A DISCUSSION ON SPACE GROUP SY MMETRY
黄河矿晶体结构的重新测定及空间群对称的讨论
Homologous Analysis of 16S rRNA Genes of Bacillus Cereus Group Strains and Expression of Crystal Proteins;
蜡状芽胞杆菌群细菌16S rRNA基因同源性分析及杀虫晶体蛋白的表达
Phonon Spectrum、Group Velocity and Thermal Conductivity of the Semiconductor Superlattice Thermoelectric Material;
半导体超晶格热电材料的声子谱、群速度和热导率