我们需要用到哪些坐标，我们也许会用一部分柱坐标，但有一个例外，即我们不需要,因为它不变，r在这里不是个变量。
Well, yes, we probably want to use part of a cylindrical coordinate, r except for, well, we don't want r because r doesn't change, it is not a variable here.
用双代数形式表示的不变量具有简洁、具体的表达式，可以由图像点坐标和基础矩阵直接求出。
The invariants of double algebra's form has simple and explicit expression which can be computed directly by coordinates of image points and fundamental matrix.
要记得，在这里的fx中,是作为常量保持不变的。，looking，at，the，situation，where，y，is，held，constant。,这是我用一个平行于xz坐标系的平面,横截了f，所得到的图形。
Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
文章还对坐标变换过程中的电磁功率不变性原则进行了讨论。
This paper also discusses the principle of the electromagnetic power unchangeableness to some extent.
研究完整力学系统准坐标表示的运动微分方程在群的无限小变换下的形式不变性。
The paper studies the form invariance of differential equations of motion for holonomic systems in terms of quasi coordinates, under the infinitesimal transformations of groups.
通过将对数极坐标和傅立叶变换结合，完成旋转不变的傅立叶纹理特征提取。
In this paper, we incorporate Fourier transform with Log-Polar transform to achieve rotation invariant texture analysis.
利用不变本征算符法给出了坐标-动量耦合的三模耦合量子谐振子的能级信息。
The energy levels for three-dimensional coordinate-momentum coupled quantum harmonic oscillators are presented by using invariant eigen-operator method.
首先，利用共线性和欧氏距离不变性这两个特性可以求得图像中的点在相机坐标系（CCS）中的坐标。
First, the counterparts of the points on image in camera coordinate system (CCS) are found by utilizing two properties, namely collinearity and Euclidean distance invariability.
对于一体系，哈密算符在任何空间坐标变换下是不变的。
For a system, Hamiltonian is invariant under any translation of spatial coordinates.
单视图测量理论主要是利用了射影几何中的交比不变性来计算图像上点的三维坐标。
Single view metrology compute the 3d coordinate of a point based on the projective geometry's characteristic of cross-ratio invariability.
同时利用交比不变性原理获取平面靶标上的特征点坐标，完成了结构光平面参数的标定。
At the same time the feature point coordinates on the planar target were achieved with cross ratio invariability theory, then structured light parameters was calibrated.
该算法检测速度快、精度高，而且具有旋转不变性，有效的解决了基于直角坐标的检测算法的不足。
This algorithm has many advantages, such as fast detection speed, high accuracy and rotation invariance. It resolves the disadvantage of the detection algorithm based on rectangular coordinates.
作者在该文中从世界空间的四维坐标和四维波矢量出发，证明了电磁波的相位不变性。
This article, on the basis of four dimensional coordinates and four dimensional wave vectors of world space, proves the phrase constancy of electromagnetic waves.
将不变本征算符方法推广到经典体系，并利用它来求体系的简正坐标。
The method of invariant eigen-operator is generalized to the classical system, and the normal coordinate of system is also obtained by using this method.
研究表明，物理学中最普遍的坐标变换并不是洛伦兹变换，洛伦兹变换的不变性原理没有普遍意义。
It is shown that the most popular coordinate transformation method is not Lorenz transformation, whose principle of no change has no universal meaning.
提出了采用旋转坐标系的方法，以保持叶型头部原有的形状及流道内流线的相对位置不变，经验证得到了很好的结果，可以应用于大多数轴流压气机的计算与分析。
A method is proposed, using rotating coordinate to keep the head with leaf-like shape and to hold the relative position of streamlines in flow channel. The method is effectively tested and can...
研究准坐标下完整力学系统在时间不变的无限小变换下的统一对称性。
This paper discusses the unified symmetry of a holonomic mechanical system in terms of quasi-coordinates under special infinitesimal transformations in which time is not varied.
提取关于坐标旋转不变的特征描述符以及提高特征描述符对噪声的鲁棒性是基于内容三维模型检索技术中有待进一步研究解决的问题之一。
How to extract the rotation invariant feature and improve the stability of the noise is still an unsolved problem of the area of content-based 3d models retrieval.
研究完整力学系统准坐标表示的运动微分方程在群的无限小变换下的形式不变性 。
On the form invariance of differential equations of motion for generalized mechanical system in terms of quasi-coordinates;
因为标量与坐标系无关，故两个矢量的点积称为标量不变量。
Formulae on the base vectors and the coordinate variables derivative going with fluid particle and their application;
因为标量与坐标系无关，故两个矢量的点积称为标量不变量。
Formulae on the base vectors and the coordinate variables derivative going with fluid particle and their application;
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