对称

If you place your objects symmetrically, then naturally the results are more symmetrical.

如果你左右对称地放你的目的，然后结果自然地更左右对称。

Moreover, we consider how to convert a system which does not possess symmetries into a symmetric one by feedback, that is the feedback symmetrization problem, this is also the problem first presented and studied in this dissertation.

另外，还考虑了如何将一个不具有对称性的非线性系统经反馈化为对称系统，即非线性系统的反馈对称化问题。

For this reason, ANSYS uses a symmetrization algorithm by which most frictional contact problems can be solved using solvers for symmetric systems.

因此，ANSYS运用对称化运算法则，通过这种方法，对称求解器可以完成大部分摩擦接触问题。

The collected data are filtered in the frequency domain with a lowpass filter to reduce the noise, followed by interpolation for avoiding problems caused by undersampling and increasing data space resolution, and symmetrization for obtaining more accurate results.

在阿贝尔逆变换前，运用傅里叶变换频域低通滤波去除实验数据中的噪声，通过多项式插值弥补数据采样率过低、提高空间分辨力，并对投影数据进行对称化处理以消除数据偏离对称对结果的影响。

The principle of twin symmetry roll axle-mill was introduced.A new process was proposed which was for twin symmetry roll axial rolling passive spiral bevel gears.The deformation process by the new technology was analyzed by rigid plastic FEM software.Rolling force was calculated in theory.

介绍了对称双辊轴向轧机原理，提出了对称双辊轴向轧制成形螺旋锥齿轮新工艺，利用刚塑性有限元模拟软件对新工艺变形过程进行了仿真分析，对成形工艺力进行了理论计算。

Its wave propagation properties in symmetry and asymmetry structure are analyzed by 3-D EBPM including the analysis and study of the influence of refractive index to wave propagation. The bend fiber-slab is also studied in this paper and point that the influence of the refractive index of the substrate to wave propagation in fiber-slab is very important. The calculating results agree with the results of the test.

本论文利用三维显式光束传播法很方便地分析了对称、非对称光纤—光波导复合结构中光波的传输问题，包括光纤折射率的大小、光波导折射率的大小对光波传输的影响等在内的主要内容；随后又研究了光纤弯曲时光波导包层折射率对光纤内能量功率大小的影响，计算结果和实验结果吻合。

The calculation results show that the normal component of magnetic intensity is symmetrically distributed around the point of the acting force, where the normal component reach the maximum value; while the tangential component is antisymmetrically distributed around the point of the acting force, where the tangential component inverses its direction sharply.

结果表明，空气中扰动磁场的法向强度和切向强度分布特征明显不同，法向强度关于力作用点对称分布，并且在力作用点处达到最大，而切向强度关于力作用点反对称分布，并且在力作用点处有突变；地磁环境下，磁场对位移的影响可以忽略不计；扰动场强与外力成正比。

In this paper, according toinfinitesimal criterion in symmetry theorem, using differential Wu-method(char-set byMathematica software) and conditions of symmeties of equation u_=Hu_,we givenew potential symmetries for nonlinear telegraph equation u_=F

本文根据对称理论中的无穷小准则，利用微分形式的吴方法(借助于Mathernatica软件编写的求解微分特征列集的程序包)和u_=Hu_型方程对称的存在条件，得到了非线性电报方程u_=F

Therewithal the symmetry about centrality had spontaneously breaken and had brought about the spacetime of multiverse, the mirror symmetry of CPT betweenthe universe of matter with antimatter centralized about The central black hole.

于是，中心对称自发破缺，产生正反物质世界以中心黑洞为中心的CPT镜面对称的多宇宙时空。

Therewithal the centric symmetry had spontaneously breaken and had brought about the spacetime of multiverse , which makes a feature of the mirror symmetry of CPT between the universes of matter with antimatter centralized about The central black hole .

于是，中心对称自发破缺，产生正反物质世界以中心黑洞为中心的CPT镜面对称的多宇宙时空。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。