查询词典 symmetry

Lie symmetry group method provides a widely applicable technique to find closed form solutions of ODEs.

Lie对称群方法为微分方程的求解提供了一种普适而又行之有效的方法。

One is a independent subsystem of the dimension equal to the difference of the dimensions between the total system and the symmetry Lie group.

这种标准形由一个维数等于系统维数与对称性Lie群维数之差的独立子系统和一个不含控制量的子系统串联而成。

Quot;I think the construction from the outset of the graphic design influence, such as my clothes light pen sketch, how to explain it to the use of trees and shrubs, line, proportion and symmetry and so on.

我认为，建筑从一开始就对平面设计有影响，比如我在服装上的轻笔素描，怎样对它进行阐释，使用树木与灌木、线条、比例和对称等。

Distinguishing methods of various zero members i n special node s are summarized as well as the method how to utilize the symmetry of structure to build local coordinate system correctly for simplified internal force calculation of plane truss.

归纳了特殊结点中各种零杆的判别方法，总结了如何正确地建立坐标系和利用结构的对称性，以便达到简化平面桁架内力计算的目

Let M be a compact submanifold of locally symmetric space N~,we apply Gauss equation,Ricci equation and the property of locally symmetry of the outer space ,through studying f =.

我们应用Gauss方程，Ricci方程和外围空间的局部对称性质等方法，通过研究函数f=？

Comparing with traditional LU numerical decomposition algorithm to solve each row of lower triangular matrix L and each column of upper triangular matrix U, the proposed method is easy to program and efficient In addition, the structure symmetry of Jacobian matrix and the experience of compiler optimization are also adopted in this research, it makes less required memory for the proposed algorithm and higher calculation efficiency.

这种算法和求取L阵每列和U阵每行的传统LU分解方法相比，具有编程简单、计算效率高的优点。另外，雅可比矩阵结构对称以及编译器优化的经验也应用到文中，使得算法不仅占用内存较少，且效率较高。

Magnetic field method is used to analysis the distribution of multi-medium, complex boundary, large difference in dimension, non-linear and forced axial symmetry magnetic field in magnetic fluid seal, the data is derived by unequally spaced net finite difference, and the results of different structure are showed by magnetogram.

利用变步长有限差分法对磁场法描述的磁流体密封中磁介质多、边界复杂、尺寸差别大、非线性的强磁场进行求解，得到了多种形式密封结构磁力线和磁感应强度等值线的分析结果。

Objective To analyze and compare dental arch symmetry between different Angle's malocclusion categories and normal occlusion.

目的 对Angle各类错及正常的牙弓对称性进行分析和比较。

It has been remarked that there is about this many-sided bishop a certain symmetry which makes him an almost faultless model of a holy, wise, and active man.

这是说，有这许多片面的主教一定的对称性使他几乎完美无缺的模式，一个神圣的，明智的，积极的人。

objective: to investigate the mandibular symmetry in cases of temporomandibular disorders with unilateral mastication.

摘要目的：研究颞下颌关节紊乱病患者偏侧咀嚼与下颌骨对称性的关系。

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％。