查询词典 geometric

For example, after spinning the geometric shape circle on its axis to any degree, the geometry of the shape remains unchanged. Therefore, the geometric shape circle is symmetrical relative to the revolvement on its axis.

例如，平面几何图形圆，绕轴心作某一角度旋转，圆的几何图形保持不变，所以，圆的几何形状具有对轴心的旋转对称。

CAD X11 includes 3-D wireframe modeling, surfacing, DXF output, 2-D drafting with ANSI, ISO and JIS dimensioning, geometric tolerance, TrueType Font support, undo and redo, multiple views, data verification, geometric analysis, crosshatching, layering, PDF output and online help.

CAD X11版本包括3-D Wireframe建模，平面制图，DXF输出，使用ANSI， ISO和JIS标准的2-D制图，几何度量，真字体支持，撤销操作和重复操作，多角度预览，数据检测，几何分析，网状阴影，图层，PDF文档输出以及在线帮助等功能。

The main content reads as follows: Chapter 1 gives a survey on the three methods by which regular geometric modeling can be rended, including parametric curves/surfaces modeling method, algebraic curves/surfaces modeling method and subdivision. Moreover we introduce in greater detail about two means for subdivision which fit into two class: geometric subdivision and algebraic subdivision.

全文主要内容如下：第一章首先对CAGD中构造&规则几何形体&的三类造型方法：参数曲线、曲面造型方法，代数曲线、曲面造型方法及细分法——曲线、曲面的离散化造型方法，作了较系统的综述，并对两类主要的细分法——几何方法与代数方法，作了较详细的介绍。

Compared with the research of the geometric nonlinear finite element method home and aboard in the components such as bar, plate, beam and shell element, the present problems is analyzed and the future research direction is described for the theoretical research and program design of geometric nonlinear finite element method.

综合比较了几何非线性有限元法在杆、梁、板、壳等方面的国内外研究成果，指出目前仍存在的问题，提出今后的发展方向，为几何非线性有限元的理论研究与程序设计提供参考。

As an updated multiscale geometric analysis tool, second generation Bandelets provide an optimal representation adaptively by multiresolution analysis and geometric directional analysis. In its realization, the search of optimal geometry directions that are as parallel to real geometries as possible is a critical step, which decides the performance and runtime of whole algorithm.

第二代Bandelets是一种新的多尺度几何分析工具，借助多尺度分析和几何方向分析自适应达到信号的渐进最优逼近，实现过程中最优逼近几何方向的寻找决定了整个算法的运行时间和性能。

In the third chapter,We study some geometric properties and spectral propertiesof the Jacobi operator on a solvable extension G of Heisenberg groups H.In the firstsection,we give the definition of G and some fundamental geometric properties on G.Inthe second section,we discuss the Integrability of certain subbundles and the geometricstructure of the induced foliations in case of integrability.In the third section,we studythe spectral properties of the Jacobi operator of G.

可解李群与类对称空间亦密切相关，Damcek-Ricci空间即是广义Heisenberg的一可解扩张李群，在第三章中，我们构造且研究了Heisenberg群的一可解扩张李群G的几何性质，第一节讨论了G的曲率，李指数映射，整体坐标等基本几何性质；第二章研究了TG的某些子丛的可积性及可积时诱导叶片的几何结构；第三节给出了G的Jacobi算子的特征值和相应的特征子空间。

Computing the geometric relationship among geometric invariants is a direct application of these techniques.

几何不变量之间的几何关系的计算是这些技术的一个具体应用。

But also to geometric attacks such as cropping and rescaling, etc. Particularly, geometric transform such as translate, affine transform and rotation is always a difficulty for watermarking because these transforms change the position of image pixels.

特别是对于平移、旋转和仿射变换这一类的几何变换，由于造成了图像像素位置改变从而使得水印的提取极为困难，一直都是水印算法的难点。

Select geometry sofa flower, with a strong monochromatic lines may pillow; the fight black and white checkerboard tile floors are the most common and most of the flavor choices; Rugs can also use geometric patterns, particularly in the artist hand-crafted are the most unique; enclosure is proposed to geometric modeling paste with a light-colored skin, and even the way through the performance of hollow sense of space.

选择几何图形的沙发布花，则可搭配强烈单色系的抱枕；黑白棋盘式的拼砖地板则是最常见也最对味的选择；块毯也可选用几何图案，尤其以艺术家手工制作者最具特色；柜体则建议以几何造型搭配浅色贴皮，甚至还可透过镂空手法表现空间感。

The aims of this thesis are researching some typical NURBS surfaces geometric continuous conditions and pointing out the effects of knot vector and the degree of surface on geometric continuities.

本文的目的是研究一些典型的NURBS曲面的几何连续条件，指出节点向量和曲面片的次数对几何连续性的影响。

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。