旋转对称性

我们证明自旋轨道耦合将两分量玻色-爱因斯坦凝聚体的基态相位差锁定在±π-2，从而打破了自旋沿x-y平面的旋转对称性，将自旋畴壁的类型限定在了布洛赫壁。

We demonstrate that the spin-orbit coupling locks the relative phase of the two-component condensates at ±π / 2 , thus breaks the spin rotational symmetry in the x-y plane and restricts the type of the domain wall to Bloch wall .

d轨道各瓣闭曲面的旋转对称性

Rotational symmetry of closed surfaces of D obitals

六方晶系Brillouin散射的旋转对称性

Rotation Symmetry of Brillouin Scattering for Hexagonal System

HCMU度量是黎曼曲面上极值度量的一个退化情形，具有整体旋转对称性。

HCMU metric is a special kind of extremal metric on Riemannian surface with global rotational symmetric .

晶格旋转对称性的单转轴证明

A demonstration the lattice rotation symmetry by a single axis

磁性粒子的时间反演对称性和旋转对称性效应

Time Reversal Symmetry and Discrete Rotation Symmetry in Magnetic Particles

雷达目标的旋转对称性研究（Ⅰ）

Rotating-Symmetric Characteristic of Radar Target ( ⅰ )

在工程实际中，燃气轮机、汽轮机的叶轮在结构上呈现周期旋转对称性。

Impeller of gas turbine and steam turbine present as rotational symmetry in structures .

具有8次旋转对称性的二维新准晶体

A New 2D Quasicrystal with Eightfold Rotational Symmetry

旋转对称性是计算机视觉形状分析中的一类重要结构属性。

Rotational symmetry is one of the important structural properties of shape analysis in computer vision .

讨论了在亲群体状态已属给定时的转移概率矩阵及其旋转对称性。

The transition probability matrix at given parent population state has been discussed together with its character of rotation-symmetry .

高分辨本领电子光学仪器（例如电子显微镜）要求电子透镜具有严格的旋转对称性，但是实际的电子透镜存在着非旋转对称的缺陷，从而影响了仪器的质量。

Electron-optical instruments ( e.g. the electron microscope ) with high resolving power require strict rotational symmetry in its electron lens system .

对称性广泛存在于机械领域中，镜射对称性、旋转对称性和平移对称性是三大基本对称性。

Symmetry exists widely in the mechanical field . Mirror symmetry , rotational symmetry and translational symmetry are the three basic types of symmetry .

本文发展了在电子回旋脉塞中广泛采用的具有旋转对称性的波导型开放式谐振腔的一般理论。

A general theory is developed on the open resonator with rotational symmetric wave-guides which have been used extensively in the electron cyclotron maser ( gyrotron ) .

而带孔结构的分立旋转对称性越高，负力矩就更明显，即使是吸收性粒子也可以产生光学负力矩。

The negative torque will be obvious if the perforated structure has sufficiently high level of discrete rotational symmetries , even the absorptive par-ticles can have negative torque in this case .

讨论了拟线性双曲型方程组的可对角化的条件，给出了结论在平面流体动力学方程组、空气动力学方程组及具有旋转对称性的守恒律方程组等方面的应用。

Discusses the conditions of diagonalization for quasilinear hyperbolic systems , and gives its applications on shallow water equations , gas dynamics system and hyperbolic system of conservation laws with rotational invariance .

利用碳管的螺旋、旋转对称性，并沿螺旋方向附加一周期性边界条件，研究了有限长金属纳米碳管的量子化能级及电子波函数。

Quantized energy levels and electronic wave functions of finite-length metallic carbon nanotubes are studied by using the nanotube helical and rotational symmetries and a periodic boundary condition along the nanotube helical direction .

本文提出一种象水轮发电机转子支架、水轮机顶盖等具有旋转对称性的复杂组合结构的有限元网格的自动剖分方法和网格的一种优化方法。

In this paper , we present a automatic generating and optimization method of finite element mesh for complex composite structures with rotary symetrical as rotor spider of hydrogenerator , head cover of water turbine etc.

准晶具有特殊的长程准周期平移序和非晶体学旋转对称性结构，其物理、化学与力学性能独特，具备一定的应用潜力[1]。

Quasicrystals are solid state matters having long-range quasiperiodic order and non-crystallographic rotational symmetries . The unique structural order gives rise to new physical , chemical and mechanical properties that are not ever observed in periodic crystals .

利用间隙技术并靠一个专用模板，就能仅通过一次试验而对爆轰波面轮廓进行记录，辽河对其不同对称程度和旋转对称性加以详细分析。

It is possible to record a detonation wave profile and to conduct a detailed analysis onits various symmetrical levels and on the rotational symmetry of a detonation wave in only " one " test by using a specific streak mask and applying the flash gap technique .

它基于模式的邻近特征、行列特征和轮廓特征进行编码，其突出优点是与模式的黑白对称性、旋转与翻转对称性以及平移对称性均无关，实验结果表明这种模式编码方法性能良好。

Its advantages are encoding based on adjacent character , queue character and figure character of pattern , while irrelevant to black-white symmetry , rotation and transposition symmetry , and translation symmetry of the pattern . The experiment shows that the method works well .