查询词典 two-dimensional distribution

The core idea of the method is to reduce the Hough cumulative dimension of the circle detection based on classical Hough transform, and convert the threedimensional statistical parameter based on the traditional circle Hough transform to two-dimensional parametric statistics about the center of a circle and one-dimensional statistical parameter about the radius of a circle.

给出了一种基于Hough变换的同心圆检测方法，其核心思想是降低经典Hough变换圆检测中的Hough累积维数，将经典Hough变换圆检测时的三维参量统计，转变成基于弦中点的圆心和半径的参量统计。

Firstly, the digital watermarking was transformed randomly, and then encrypted by chaos. The encrypted watermarking was transformed to one-dimensional row vector, and the pixel value was sorted. The coefficient of primitive image of stationary wavelet transformation was expanded to one-dimensional row vector, too, and then the sorted watermarking was embedded to the sorted low frequency and turned to two dimensions.

本算法先将数字水印图像进行置乱变换，然后将置乱后的水印图像进行混沌加密，将加密后的水印按行展开成一维行向量，并将像素值从大到小排序，将原始图像平稳小波分解得到的低频系数也按行展开成一维行向量，并按从大到小排序。

The predicted two-dimensional axisymmetric distributions of density and mass fraction were converted to the three-dimensional distributions,and then the computational shadowgraph s were obtained based on the optics theory of the shadowgraph.

并将计算获得的密度和组分等的轴对称二维分布转换为三维分布，由阴影图的光学原理，绘制了相应的计算阴影图。

The thermodynamical properties of the two dimensional square lattice and the three dimensional simple cubic lattice transverse Ising model with spin - 1/2 are investigated within the framework of the finite cluster appraximation.

本文在有限集团近似的框架内研究了自旋为1/2的二维平方晶格和三维简立方晶格横场伊辛模型的热力学性质，得到了相应的相图，临界温度和临界横场。

In the new method for two-dimensional problems the line integrals onboundary elements are converted into the evaluation of potentialfunctions at the ends of these elements.For three-dimensional cases,thesurface integrals on the usual boundary elements are transformed,through an application of Stokes'theorem,into line integrals on thebounding contours of these elements.

边界轮廓法是刚刚出现的一种新型的边界元法，该方法的核心是利用边界积分方程被积函数散度为零的特性，对二维问题，原积分方程中沿边界单元的线积分被化为单元两端点势函数之差计算，对三维问题，将边界单元上的面积分转变为沿单元轮廓的线积分，它是一种十分简便有效的边界元新技术。

Carl Ludwing explains how this technique differs from traditional texture mapping : when you want something to be in a certain area, like a grease spot, everyone else tends to do it with standard texture-mapping tools. But if I take a painted map and map it on, then I've wrapped a two-dimensional object around a three-dimensional object, and there are all sorts of positioning problems associated with that. Also, when you transition to another subpart of the character, you have to provide a whole new set of coordinates.

卡尔·路德温解释了这一技术与传统材质贴图技术的不同之处，比如说：如果想把油点一类的东西贴到某个地方，别人都会用标准的材质贴图工具来完成，但是如果我先拿来一张着色的地图，把这个油点标在上面，那就等于把一个三维物体安置在二维环境当中，随之会出现各种定位方面的问题，同样，如果你要观察目标的另一处次要部位，就必须给出新的坐标。

In the two-dimensional surface on the car is no easy thing, so it is not difficult to imagine a leap into the air when the three-dimensional space, driving, traffic planning is all the more high-tech network.

在二维的地面上开车就不是件简单的事儿，所以不难想像，当跃升到空中的三维空间时，驾驶、交通网规划更是高新技术。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程，确定岩石三维损伤张量的定义，对损伤张量进行简化计算并得出其工程计算方法，采用等效应力假设得出有效应力的基本表达形式，对有效应力进行对称化，得出节理损伤岩体的三维本构关系，在有限元方程中实现弹塑性和损伤耦合；借鉴弹塑性渐进退化方法的思想，采用有限元的方法模拟岩石损伤渐进破坏过程，用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序，通过模拟已有的实验破坏过程，得出模型的破坏图像和轴向荷载变形曲线，与实验结果基本一致。

Like the staircase of my signature, it can be represented in two- dimensional space but cannot exist in three- dimensional space.

我喜欢上签名，它可以在两个-维空间，但并不存在于3 -维空间。

It is theoretical and practical demand to study the transient electromagnetic response of two-dimensional and three-dimensional models.

因此，研究二、三维模型的瞬变电磁响应具有重要的理论和现实意义。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。