查询词典 origin of coordinates

In spherical polar coordinates, DRSC potential have supersymmetry and shape invariance for θ and r coordinates. By using the method of supersymmetry and shape invariance, exact bound state solutions of Schrodinger equation with double ring-shaped Coulomb potential are presented. The normalized angular wave function expressed in terms of Jacobi polynomials and the normalized radial wave function expressed in terms of the Laguerre polynomials are presented. Energy spectrum equations are obtained.

本文研究了双环形Coulomb势Schrdinger方程的束缚态精确解，所采用的方法是首先对双环形Coulomb势的Schrdinger方程在球坐标系中进行分离变量，得到相应的角向方程和径向方程；证明双环形Coulomb势在角向和径向具有超对称性和形不变性；根据超对称性和形不变性的性质，获得了角动量量子化条件和束缚态的能谱方程，并将归一化角向波函数用Jacobi多项式表示，将归一化径向波函数用Laguerre多项式函数表示。

The problem with geographicc coordinates, however, is that they represent coordinates on the Earth's surface, which is a spheroid shape.

与地理坐标的问题，但是，他们代表了地球表面，这是一个球体形状。

The new packaging system utilizes a vision system to determine the coordinates of randomly placed product on a moving conveyor and these coordinates are then transferred to the robot.

新包装系统使用了一个视觉系统用于在滚动的传送带上确定随便堆放产品的对应位置，然后这些对应位置转移给机器人。

These transformations are based on the mathematical relationships that describe the various map projections. Thus, a transformation converts the coordinates of one system to the coordinates of another .

而这些转换的过程是经由数学计算来描述地图上的各种规划，因此用这种方式将不同系统座标来作一个转换。

In addition,make the coordinate normalization of carrying on different systems of coordinates of measuring point many times,After reaching the same system of coordinates in unison,give and carry on the treatment method to the data of overlapping based the characteristic of measuring the data.

此外，对多次测量数据点进行了不同坐标系的坐标归一化，统一到同一个坐标系后，针对测量数据的特点给出了对重叠数据的处理方法。

On basis of color factors of images, the relationship between chroma and color coordinates is obtained, and a method of color coordinates transformation applicable to skin-chromatic, lip-chromatic enhancement is established in this paper.

文中通过对彩色图像的色彩因素的分析，得出了关于色度与彩色坐标系的关系，建立了相应的肤色、唇色色系的坐标变换方法。

Based on teaching function for generation of workpeice process program, this paper suggests an interpolation algorithm of space line and arc and the transformation of space absolute coordinates to machine motion coordinates.

摘要在示教生成零件加工程序的基础上，讨论了空间直线和圆弧的插补算法以及空间绝对坐标到机床运动坐标的变换，并对插补算法的误差进行了分析。

Third, the application of MAOST is extended to the surface of 3-D rotary object to measure which formulas of coordinates transformation in cylindrical coordinates are given, and a useful algorithm is put forward to calculate those complicated formulas.

本文建立了多孔径扫描拼接测量的物理模型和数学模型，提出孔径拼接的本质是坐标变换，导出了直角坐标下测量大型平面物体面形的坐标变换公式，在此基础上进行了大平面测量的计算机模拟和实际干涉测量，结果表明，当孔径放大系数为2.34时实测精度优于λ/60。

This is the basic concept behind the world coordinates and the viewport coordinates below.

这是世界背后的基本概念坐标和视口坐标如下。

The results show that the particles in the two phosphor samples are overall spherical-shaped with a mean size of ~300 nm, and their main emission peaks under 147 nm VUV excitation are located at 619 nm. In comparison with Y0.95Eu0.05PO4 phosphor, Y095Eu0.05 (P0.2V0.8)O4 phosphor is a more promising candidate for red-emitting PDP phosphor application due to its higher homochromy and its chromaticity coordinates closer to flammulated chromaticity coordinates (0.67, 0.33) regulated by National Television Standard Committee.

结果表明，制得的Y0.95Eu0.05P(下标 1-xVO4(x：0，0.8)荧光粉的粒径约为300nm，在147nm真空紫外激发下，发射光谱的主峰位于619nm；与Y0.95Eu0.05PO4荧光粉相比，Y0.95Eu0.05(P0.2V0.8)O4具有更好的色纯度，它的色度坐标更接近国际电视标准委员会规定的红色色度坐标(0.67， 0.33)，是具有很好应用前景的PDP红色荧光粉。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。