矢量的

Average velocity is a vector quantity, in the same direction as the vector △s.

平均速度是矢量，它与矢量△s的方向相同。

MAIN OUTCOME MEASURES:Vector converting of CT image and vector image of three-dimensional reconstruction of femoral condyle.

主要观察指标：CT图像的矢量转换和股骨髁三维重建矢量图像。

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 dot product of vectors a and b .

矢量 a 和矢量 b 的点积。

Directly qualitative analyzing electric displacement vector and magnetic field intensity are the achievement and innovation of this thesis.

本文的主要创新点在于以亥姆霍兹定理直接分析电位移矢量和磁场强度矢量。

In this paper, suah as Molecular electro-negativity distance vectors , Molecular Electronegativity Interaction Vector were further Studied.

文中对分子电性距离矢量/分子电性相互作用矢量等进行深入的研究。

By matching the image to vector map, the vector data is the reference.

在影像与矢量匹配中，矢量数据是匹配的依据。

When the factor to be cancelled is a base vector, we dot -multiply by another base vector to produce a kronecker delta

当要消去的因子是一个基矢量时，用另一个基矢量来点乘，以得到克罗内克尔记号。

It is shown from the preliminary discussions that the sea bottom friction vector is not opposite to the horizontal current flux vector.

初步讨论表明，海底摩擦矢量与水平流通量矢量并不在相反的方向上。

Second, based on the spherical vector wave function in uniaxial anisotropic medium, and the first, second, third and fourth spherical Bessel functions satisfy the same differential equation and recursive formula. The scattering fields in terms of spherical vector wave function from a uniaxial anisotropic spherical shell and an anisotropic uniaxial-coated conducting sphere by a plane wave are derived. The electromagnetic fields in uniaxial anisotropic medium and free space can be expressed in terms of spherical vector wave functions in uniaxial anisotropic media and isotropic medium.

二、在建立均匀各向异性单轴介质球矢量波函数理论的基础上，利用二阶线性偏微分方程的性质和第一、第二、第三和第四类球Bessel函数满足相同的微分方程和递推关系，我们分别研究了单轴介质球壳和单轴介质涂覆导体球对平面波的电磁散射特性，首先给出了各个区域的电磁场用球矢量波函数来表示的解析表达式，进而利用电磁场在边界上满足电磁场切向连续的边界条件和球谐函数的正交性，得出了各向异性单轴介质球结构中电磁场用球矢量波函数表示的系数所满足的矩阵方程。

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。