查询词典 translation symmetry

The coherent electron micro-diffraction from a translation domain boundary perpendicular to the direction of the incident beam was studied. The qualitative and analytical descriptions are given to reveal the phenomena on the breakdown of center symmetry and an appearance of the forbidden diffraction spots.

对垂直电子束方向的畴界的特征，进行了实空间法的准动力学的理论推导，给出了对称性的定性描述，同时用动力学多层法程序对一些上下畴界进行了模拟；对出现的斑点不消光，中心对称的破损，镜面对称的破损等给出了定性的实空间法的动力学的理论的解析描述。

On the base of these, the electron diffuse scattering, being highly intensive and confined in reciprocal space to a regular geometric surface exhibiting the translation symmetry of the b.

发现在各倒易截面中，电子漫散射强度集中分布在一较窄的带状规则几何图形上，并且，各几何图形同与之相应的对应于面心立方f.c.c。

The translation group symmetry of phononic crystal is changed by changing the size of adjacent rods.

通过改变两相邻的柱体底面边长之比来改变声子晶体的平移群对称性。

However, proving axisymmetry for the Onsager model is still very difficult, at least for two reasons: The first is that we lack methods for proving axisymmetry, even though there are method for proving radial symmetry or translation invariance.

但是，证明了Onsager模型轴对称仍然是非常困难的，至少有两个原因：第一，我们缺乏证明轴对称的方法，即使是证明辐射对称或平移不变性的方法。

Key Words: decimal, symmetry, translation and rotation, multiplication

重点词汇：小数，对称、平移与旋转，乘法

Geometric transformations are translation, rotation, symmetry, shear, variable ratio.

几何变换有平移、旋转、对称、错切、变比。

In phase of junior high school, graphical motion basically is contract commutation, contain translation, axial symmetry, rotate and the center is symmetrical.

在初中阶段，图形的运动主要是合同变换，包含平移、轴对称、旋转和中心对称。

However, when the quotiety of the equation F=0 makes orthogonality change, such as rotation、translation and symmetry, the form of dimensional surface can/t be changed.

A的符号差为±1，即a，b，c中有一个异号时，方程(*1)表示锥面(右图1)。

For one-dimensional mesoscopic metal rings system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current relation in mesoscopic metal rings is given by solving the eigenvalue equation of the current, the property of quantum current have been investigated and analysed.

针对处于外磁场中的一维介观环系统，假设在电荷空间中具有变换的对称性，通过求解电流算符的本征值方程，给出系统中的量子电流关系，分析和研究一维介观金属环中量子电流的性质。结果表明，量子电流不仅与外磁场、介观金属环参数有关，而且还明显地依赖于电荷的量子化性质

Because the governing equations have the relationship of translation symmetry, the displacement fields and the electrical potential fields can be represented by Bloch theorem to get the periodical structural governing equations.

将应力和电位移场以位移和电位场表示，即可利用层与层间的位移、应力、电位和电位移必须连续等条件求得转换矩阵，再满足上下表面的边界条件即能求得出压电周期叠层板波传频谱。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。