晶体的对称性

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。

Acoording to the crystal symmetry , diffraction geometry and the diffraction laws , the complicated divergent beam X-ray diffraction has been studied .

肯定了NAB晶体的对称性，并发现了该晶体中存在异结构夹层，它们和[101]方向约成60Ⅰ°交角，层状分布在晶体之中。

It has been found out that interlayers of different structures exist in the crystal , which distribute in layers and form a 60 ° angle with ( 101 ) direction .

利用晶体的对称性讨论三维晶格振动

A discussion of three-dimensional lattice vibration in crystal by its symmetry

手性结构破坏了晶体的对称性，从而使原先简并的横波模分裂成一对左右旋模式。

The chiral structures break the symmetry so that the degenerate transverse modes split into a pair of right-hand polarized mode and left-hand polarized mode .

高维空间晶体可能的对称性

The Possible Symmetry of Crystal in High-Dimensional Space

全同立构聚丙烯晶体结构的对称性研究

Symmetry studies of crystal structures of isotactic polypropylene

晶体的宏观对称性与微观对称性

The Macroscopic and Microscopic Symmetries in Crystal

影响碳酸钙晶须结晶过程的内部因素包括晶体结构的对称性、结构基元间的作用力、晶格缺陷等，外部因素主要包括反应器的结构因素和操作因素两大类。

For crystallization process , the internal influence factors are symmetrical characteristic of crystalloid structure , acting force of different basic dollar , and lattice defect , while the external influence factors mainly include reactor structure and operation factors .

浅谈晶体物理性质的对称性

A discussion about the symmetry of physical properties of a crystal

泵浦过程中晶体热效应的对称性

Symmetry of thermal effects in pumping process for crystals

四方相二氧化锆晶体振动模的对称性

Symmetry Properties of Normal Vibrations for Tetragonal Zirconia

石英晶体结构的三角对称性和Cr/Au掩模的耐腐蚀性是限制微细加工制作石英音叉达到理想形状的关键。

The trigonal symmetry of the quartz crystal and the corrosive-resistance of Cr / Au mask are the keys to limit the outline of the quartz tuning fork .

NH4H2PO4晶体反铁电相的对称性及序参量

Symmetry and Order Parameter of the Antiferroelectrics NH_4H_2PO_4

实验发现丙氨酸晶体的空间群P212121对称性没有改变。

No change in the space group P212121 symmetry was observed .

这个相的选区电子衍射花样显示出准晶体结构的五次对称性。

The selected area diffraction patterns from the phase show a fivefold symmetry of a qua-sierystalline structure .

枝晶分枝程度与过冷度和晶体对称性有关，分枝反映晶体的对称性。

Dentrite branching related to super-cooling reflects the symmetry of its crystal .

然后分析了平移对称性在声子晶体能带结构调节中的影响，以及如何通过人工调节改变声子晶体的平移对称性。

Then the regulation of translational symmetry to the phonon energy band structure of photonic crystal , as well as how to change phonon translational symmetry of the crystal artificially were analyzed .

准晶体（Quasicyrstal）是具有与晶体相似的长程有序的原子排列，但不具备晶体的平移对称性的一种结构。

The quasi-crystals is similar to the crystal long-range ordered atomic arrangement , but do not have the translational symmetry of a crystal structure .