对称

When 5 is the set of all symmetric and ortho-symmetric matrices, we have first discussed the construction and eigen-pair character of this kind of matrics.

当S是所有对称正交对称矩阵集合时，我们首先研究了这类矩阵的几何结构和特征性质。

Properties of the two forms of special matrixes are frequently used and discussed in the study of matrix and related ma...

本文先给出对称矩阵和反对称矩阵的定义，然后讨论了它们的若干性质。

Just look at those statues. They have been made by meditators in such a way, in such a proportion, that just looking at the statue, the figure, the proportion, the beauty... Everything is very calculated to create a similar kind of state within you.

只是看着那些雕像，它们已经被静心者来建造，以那样的一个对称的方式，只是看着那些雕像，那个形象，对称，美丽……一切都是经过精心设计的，你内心也有类似的的情形。

Metrical verse emphasizes symmetry and uniformity. My own impulses are toward asymmetry and syncopation: the off-balance, the slant, the microtonal, but still with a pulse.

格律诗强调对称与统一，而我则倾向于不对称和切分法：即不平衡、倾斜、微音程，但仍然具有律动。

The frequency and amplitude of wake force were deduced theoretically, while the influence of stator sector distribution and stator vane quantity on the wake force of vane was also discussed. Transient analysis was conducted for the forcing response of rotor blades under the same stator sector distribution and different quantities of stator vane, so an optimum asymmetry stator mistuned design was developed.

对不对称静子叶片非谐情况下激振力频率幅值进行推导，讨论了静子扇区分布和静叶数目选取对尾流激振力的影响，并对相同扇区分布不同静叶数目情况下转子叶片的强迫响应进行瞬态分析，给出不对称静子非谐设计的最优方案。

Ni6 cluster is an octahedron belonging to Oh point group. Its 3Eg orbital presents strong negative exchange coupling and has a trend of antiferromagnetic couplings. Ni5 cluster is of three-side pyramidal structure belonging to point group C3v. The magnetic moment direction of Ni atom lying on vertex of the pyramid is antiparallel to the moment direction of the Ni atoms lying on underside of the pyramid, which present the characteristic of ferrimagnetic couplings.

具有Oh点群对称的八面体原子簇Ni6的3Eg轨道上存在很强的负交换耦合，呈现反铁磁耦合趋势；具有C3v点群对称的三边金字塔结构的原子簇Ni5位于塔顶点的Ni原子与基面上的Ni原子磁矩方向相反，但大小不等，呈现出亚铁磁交换耦合特征。

Objective:To establish a method for determination of the concentration of the stereoisomers of soman in mice brain and diaphragm after soman was subcutaneously administrated to mice.

梭曼有一个不对称的碳原子和一个不对称的磷原子，因此有 4个光学异构体，即CP ，CP ，CP ，CP ，这些异构体的毒理学及代谢特性差别很大。

Selenium; Se Grignard Reagent; Organic selenides; symmetry selenides; unsymmetry selenides; synthesis

工程科技I，化学，有机化学硒；硒格氏试剂；有机硒化合物；对称硒醚；不对称硒醚；合成

In this paper, the surplus projections and the basic theory of asymmetric information were also discussed, on the basis of this analysis focused on the impact of earnings forecasts and information symmetry of factors: including the impact on earnings forecast accuracy of factors, the management earnings forecast information disclosure and the wishes of the company The judgement of accruals manipulation.

本文首先对盈余预测和信息对称的基本理论进行了阐述，在此基础上重点分析了影响盈余预测和信息对称的因素：包括影响盈余预测准确性的因素，管理当局盈余预测信息披露的意愿和公司对裁决性应计项目的操纵。

Our study rules out the effect of strain and composition alloying as the main factor of peak splitting. We attributed it to the existence of large amount of non-stoichiometry part in GaN/Si grown by MBE. A direct proof has been observed by HRTEM, which shows that the propagation of dislocations in the underlying layers could be blocked by using periodic AlN/GaN structure.

用三轴晶高分辨X射线衍射研究了Si(111)上生长的GaN中的应变组分问题，我们发现GaN的对称（0002）及非对称（10-12）峰在三轴晶配置下的ω-2θ扫描曲线都会发生劈裂，我们排除了应力和合金化的因素，认为在MBE方法生长的Si（111）上GaN外延层中存在一个占较大比例的稍微偏离化学配比的部分。

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％。