The preliminary crystallographic study shows that GAPDH crystal belongs to C2 space group, there is only half molecule per asymmetric unit and the molecule located at the 2-fold axis.
初步Χ射线晶体学研究确定：此酶晶体属於C2空间群，不对称单位内含有半个分子，分子坐落在二重轴上。
The four monomers are essentially identical in the tetramer possessing the non-crystallographic 222 symmetry with one 2-fold axis essentially coincident with the crystallographic 2fold axis in the space group 〓, which may explain why the diffraction pattern has strong pseudo-I222 symmetry even at medium resolution.
木糖异构酶分子在晶体中以非晶体学222对称的四聚体形式存在，其中的一个二次轴与〓空间群的晶体学二次轴相一致，四聚体中的每个单体本质上是相同的，这也解释了晶体在中分辨率仍有较强的赝I222对称的原因。
They belong to the monoclinic crystallographic system with space group Cm.
该系列晶体属非中心对称的单斜晶系，空间群Cm。
Volume 11 of group IV presents phase diagrams, crystallographic and thermodynamic data of ternary alloy systems.
卷组11第四节介绍相图，三元合金的晶体学和热力学系统的数据。
A new viewpoint was proposed and a new rule was also proposed in determining whether crystallographic equivalence of ether and ketone linkage was tenable after taking account into the variety of aryl ring, the ratio of ketone to ether group, and the fashion of the ether and ketone linked by the aryl ring.
对聚芳醚酮晶体结构醚酮等效性提出新观点和判据，即讨论聚芳醚酮类聚合物的醚酮等效性问题必须考虑主链芳环种类，酮基与醚基比例，酮基、醚基与芳环连接方式的影响。
Europium zinc α-thiophene carboxylate coordination dimer containing 1, 10-Phenanthroline ligand was synthesized from ZnO, Eu2O3, α-Thiophene carboxylic acid and 1, 10-Phenanthroline at 80℃. Crystallographic data are as follows, triclinic, space group P〓, a=13.536 (3), b=15.563 (3), c=13.103 (3)〓, α= 114.55 (3), β=90.90 (3), γ=71.79 (3)°, V=2364.3 (8)〓, Z=2, 〓. The dimer has very strong red emission when excited by UV light.
合成了具有很强红色发光的新型二聚配合物α-噻吩羧酸铕锌〓，晶体属三斜晶系，P〓空间群，晶胞参数为a=13.536（3），b=15.563（3），c=13.103（3）〓，α=114.55（3），β=90.90（3），γ=71.79（3）°，V=2364.3（8）〓，Z=2，D〓=1.730g／cm〓。1，10-Phenanthroline及α-噻吩羧酸根的激发态能量能有效的传递给Eu〓并产生其特征发射，Eu〓离子的〓跃迁发射带发生了明显的劈裂。
Our present results indicate that in the crystallographic structure of these crystals there exist the so-called the strong-contribution atomic group of nonlinear optical frequency doubling effects and the sensitive lattice position of frequency doubling effects.
结果表明在晶体的结晶学结构中存在着非线性光学倍频效应强贡献原子团和倍频效应敏感格位。
The subgroup network of the three-dimensional crystallographic symmetry group has been derived based on the two maximal finite groups corresponding to two geometrically inequivalent classes.
在严格的群论基础上对三维空间的两个几何不等价的极大有限群的子群网进行了详细推导。
Derivation of subgroup network of three-dimensional crystallographic symmetry group
三维空间子群网的推导
The data for each pattern presented in the form of tables of chemical formula, English name, crystallographic system, space group, interplanar spacings, relative intensities, cell parameter and Miller indices.
该数据库以表格形式向使用者提供化合物分子式，英文名称，晶系，空间群，晶面间距（d&值），相对强度，晶胞参数和Miller指数等内容。
The habit planes of martensite variants in Cu-based shape memory alloys are calculated with phenomenological crystallographic theory and the probable types of inter-variant boundaries are analysed with group theory.
运用马氏体相变的表象理论计算了铜基形状记忆合金中马氏体变体的惯习面，利用群论原理分析了变体之间可能存在的界面类型。
A new nonclassical crystallographic group (NCG) theoretical system is set up.
提出了非经典晶体（NCG）理论体系。
Crystallographic equivalence of ether and ketone group in the crystal structure of poly s was discussed again on the basis of the work reported in the literatures, which there were different viewpoints to.
对存有争议的聚芳醚酮晶体结构醚酮等效性问题进行了研究。首先设计并合成两种新型聚芳醚酮类聚合物PEDK与PEDEKDK，并对其晶体结构进行解析。