矢

The vector sum of the angular momentums of each component particle of an extended body.

动量矩伸展体的每个组成微粒的角动量的矢量值。

The new method assumes that data properties are basic vectors of m dimensions, and each of the data is viewed as a sum vector of all the property-vectors.

该方法将属性矢量化，属性作为m维空间的基本矢量，数据记录作为属性矢量的和。

Methods :51 cases of syringomyelia associated with intraspinal tumor were studied.

全部病例均用SE序列进行矢、横断面成像。

As for the parametric space calculation to find an optimal 3D point, the Tangent Vector Inversion is presented so as to cut down iteration.

针对求解曲面上最优点的参数域反算问题，引入了切矢逆求方法，可使迭代次数大为降低。

Triple NURBS curve was renewed with number of k-1=2 boundary conditions, under this circumstances, tangent vector procedure was selected in AutoCAD.

采用的三次NURBS曲线需补充k-1=2个边界条件，AutoCAD用的是矢切条件。

On magnetic resonance imaging, PSP is characterized by atrophy of the midbrain tegmentum. The atrophy of the rostral MT, when detected by mid-sagittal MRI, looks like the bill of hummingbird and is therefore referred to as the "hummingbird" sign.

在MRI上PSP表现为中脑被盖部萎缩；在正中矢状位上，中脑被盖部嘴缘的萎缩看起来像是蜂鸟的鸟嘴，因此称为"蜂鸟征"。

The mid-sagittal MRI in PSP patients includes the regions of the most rostral midbrain, the midbrain tegmentum, the pontine base, and the cerebellum, and these images on MR appear to correspond to the bill, crown, body, and wing, respectively, of a hummingbird.

PSP患者的中脑嘴、中脑被盖部、脑桥基底部、小脑再MRI正中矢状位上看起来分别与蜂鸟的鸟嘴、鸟颈、鸟身、鸟翼相似。

For acquiring relations between the eigenfunctions of waveguides and tensor Green function, we first take the Fourier transform of Green function. In isotropic media the simplest image function can be expressed in dyadic form, and in anisotropic media in the form of ABA+-ikz0,where A is the coordinate matrix.

为了得到波导管的本征函数和格林张量函数的一些关系，我们首先对格林函数作富氏变换，它的象函数在各向同性介质波导中以并矢形式作为最简单的表达方法，而在充有各向异性介质波导中可以表为ABA~+e~的形式，这里A是坐标矩阵。

On the basis,the effect of different factors such as the arrangement of lateral brace,the sloping angle of arch ribs,the stiffness of bridge deck system,the effect of non-orientedly conservative loadings of the hanger and tie bar etc is discussed.

在此基础上，本文还通过有限元模型分析，就拱的矢跨比、吊杆的非保向力效应、桥面系的刚度、横撑布置形式、拱肋侧倾角等因素对该桥整体稳定性的影响展开探讨与研究。

Automatic vectorization of scanned topographic maps is an important and difficult problem that needs to be solved urgently.

地形图的自动扫描矢量化是GIS领域亟待解决的一个重要难题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。