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Since any n×n doubly stochastic circulant matrix has a unique representation as a polynomial of degree n-1 in the shift operatorω_n,the classification problem of primes in the doubly stochastic circulant matrices can be reduced to the solution of an equation over a doubly stochastic circulant matrix.

由于任一n阶双随机循环矩阵都可以唯一地表示为移位的n-1次一元多项式,从而可把双随机循环矩阵中素元的分类问题简化为解双随机循环矩阵上的一个方程。

The indices comprise the greatest rock's volume in alluvial cone, the greatest cognizable single alluvium's thickness, the surface slope in alluvial cone, the vegetation and land use, the soil erosion, and the runoff.

在荒溪分类的基础上,提出了荒溪内危险区划分技术,给出了不同荒溪类型沟道危险区划分方法和冲积圆锥危险区划分的指标体系(冲出石块的最大体积、可辨认的单次淤积的最大厚度、冲积圆锥表面坡度、植被状况和土地利用情况、侵蚀状况、径流状况等)及数量化评分方法。

With one click,you can select a complete class set of documents and let the software analyze them.

随着一次单击,你可以选择一个完整的文档分类设置并且让该软件对它们进行分析。

Pixel values in an image window are taken as a realization of a BN, and the structure and parameters of BN for each texture class are then studied. The conditional distribution probability of the pixels is used as the feature for texture classification.

把纹理图像在一个窗口内各个像素的灰度值看作贝叶斯网络的一次实现,通过训练得到各类纹理所对应贝叶斯网络的结构和参数,用纹理图像像素点在网络中的条件概率分布作为特征进行纹理分类。

The author is combination particular text and inquiry her oomph and the style of coprology from three path: first counter Zhang kangkang's style of coprology and personality have import effect and winding life story march tease and staple and generalize of humanness's stage; Secondly from novel and prose to assay her oomph of against; Lastly from eyeshot and thinking module of person and setting of person's combination and artistic conception to discuss her taste style.

本文中,笔者结合张抗抗具体的文本,从三个方面切入研究张抗抗独特的精神品质和文学风貌:首先对在张抗抗日后文学风格及个性形成产生重要影响的曲折的人生经历进行了一次综合地梳理,并对在此基础上形成的对人的认识的不同阶段进行分类、概括;第二,分别从小说和散文里,分析张抗抗抗争的精神品质;最后,从叙述视角、"人"的思维模式、人物关系的设置、意境的营造等方面,探讨张抗抗的审美特征。

His accounting method was the Italian method of debit and credit, with daybook, journal and ledger, together with a separate opening inventory.

他的会计处理方法是借鉴的意大利方法,即由日记簿、日记和分类账,连同分开的第一次的详细目录在一起。

The river patterns of the study area were analyzed by the latest channel pattern discrimination in the last glacial maximum and deglaciation of the Late Pleistocene. The hydrology, sediment, environment parameters of the ancient channel in the study area, width-depth ratio F =22.22, suspended sediment concentration M =10.10%, channel curvature P =1.52, meander wavelength L =

然后应用最新河型判别方法,分析判别晚更新世末次盛冰期和冰消期研究区埋藏古河道的河流类型为辫状型;并分析得到研究区古河道的宽深比( F =22.22)、悬移质含量( M =10.10%)、河道弯曲率( P =1.52)、河曲波长( L =1 647 m)等古水文泥沙环境参数分类指标。

At first, it analyses the visibility processing of complex scene, including: spatial partition technology BSP, quadtree, octree and equational octree which can optimize scene, category of quick visibility estimation algorithm in the 3D scene, portal which can accelerate rendering, level of detail and mesh simplification based on quadric error metrics used to simply models in 3D scene.

首先分析了复杂场景的可视化处理,包括优化场景渲染的空间剖分技术:BSP树、四叉树、八叉树、均分八叉树;其次是三维场景快速可见性判断算法的分类,可加速渲染的入口技术;最后是用于三维场景中模型简化的两个算法:层次细节模型简化技术和基于视点的二次误差度量网格简化。

The topics covered in these sections are the geometric interpretation of systems of linear equations, the classification of finite symmetry groups in two and three dimensions, the exponential of a matrix and its application to solving systems of first order linear differential equations with constant coefficients, and Hurwitz's theorem on the composition of quadratic forms.

这些条文所涉及的主题是线性方程组的几何解释,在两个和三个有限对称群的分类方面,一个矩阵及其应用,以解决一阶常系数线性差分方程,系统指数赫尔维茨定理在二次形式组成。

The Letters differ in various ways: as produced by different conformations or in different regions of the mouth; as aspirated, not aspirated, or sometimes one and sometimes the other; as long, short, or of variable quantity; and further as having an acute, grave, or intermediate accent.

字母有不同的分类方式:口腔不同的构型或不同位置发声;送气或不送气,有时送气或有时不送气;长音、短音或不确定音长;轻重音、次重音、重音等。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。