矢量

By adopting the two different covariant representations of ...

在完全的膺矢量表示下，HVH定理遭到了相当大程度的破坏，从而体现出基态关联效应对单核子性质的重要性，并与非相对论BHF理论方法得到的结论一致，因而完全的膺矢量表示要优于膺标量表示。

The motion of a discrete curve in Minkowski space is first introduced. Then by identifying the spin vector of HF models with the unit vectors of discrete curve, respectively, we obtain the corresponding DNLS.

我们将主要考虑闵可夫斯基空间中离散曲线的运动情况，并利用离散曲线的单位矢量分别替代离散的MHF方程中的自旋矢量，给出相应的离散非线性薛定谔方程，从而建立了两者之间的几何等价性。

In this paper, the normal and abnormal cylindrical vector wave functions are constructed and their conversion relations are found out.

引言 文献tl中提出，在某个坐标系统里，用同一生成函数集，不同的领示矢量，可以构成标准和非标准矢量波函数。

The far-field analytical expressions for the electromagnetic fields of a cylindrically polarized vector beam propagating in free space are obtained based on the vector angular spectrum and the method of stationary phase.

基于矢量角光谱法与静态位相方法，推导出了矢量圆柱偏振光束在自由空间传输的电磁场的远场解析表达式。

This paper analyzes the different deflexion angle of thrust vectoring influence on aircraft take-off performance according to the result of numerical simulation.

通过数值仿真探讨了推力矢量的偏转大小对起飞性能的影响，对不同推力矢量偏转下飞机起飞性能的仿真计算结果进行了分析。

The vactrix method is further developed, a vectrix Skew-symmetric crossproduct identity is presented and the dyadic form of the derivative of a vector with respect to another vector in terms of vectrix is also offered.

进一步发展了矢阵方法，提出了矢阵叉积算子恒等式及矢量相对于矢量的导数以矢阵表示的并矢形式，并给出了若干应用实例。

A.Einstein's personal experience had founded his belief in mathematics and relevant methodology,success in the general theory of relativity had his belief enhanced,and this had led Einstein astray in introducing the semivector for research Dirac's equation.

爱因斯坦；数学信仰；半矢量；爱因斯坦的科学经历铸就了他的数学信仰以及相应的方法论，广义相对论的成功使这种数学信仰得到强化，并使他在引入半矢量研究狄拉克方程过程中误入歧途。

Line Integral Convolution method is a powerful technique for representing directional information in vector field visualization.

矢量场可视化是科学计算可视化中的一个研究热点，基于纹理图像的流线积分算法可以清楚地描述矢量场的细节。

The pitch model of disyllable in Mandarin has been systemically studied on the basis of real materials of disyllable words through the techniques of polynomial curve fitting and VQ. The results show:(1)It is a practical and effective method in establishing the pitch model of disyllable through the techifiques of polynomial curve fitting and VQ.

本项研究从实际语音材料出发，运用曲线拟合和矢量量化的方法，对汉浯双音节调位的模型进行了系统地研究，研究结果表明；(1)利用曲线拟合和矢量量化技术对汉浯双字词声调组合进行模式归类是一种可行和有效的方法。

The dot product of vectors a and b .

矢量 a 和矢量 b 的点积。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。