查询词典 rectangular cartesian coordinate system

The article carries the significance of arrangement of analytic finance system and region economy difference, put forward to promote economy of our country region to coordinate the finance train of thought of development.

本文通过分析财政制度安排与区域经济差异的关系，提出促进我国区域经济协调发展的财政思路。

In a polar coordinate system, the concept of image area extension is established, and the uniqueness problem is discussed for an image whose Fourier series expansion of grey only contains the 0th-order and 1th-order terms.

同时本文以极坐标系表示图像平面，建立了图像区域延拓的概念，讨论了由灰度关于极坐标系角度坐标的富里叶展开式仅含零阶和一阶项之图像恢复物体外形的唯一性问题。

At present, how to assign relations between the friction brake and the regenerative braking, how to coordinate and control their assignment proportion, has already become the regenerative braking system key question.

目前，如何分配摩擦制动和再生制动之间的关系，协调控制二者的分配比例，已经成为了再生制动系统的关键问题之一。

In this system, Galerkin meshless method based moving least square approximation is applied in space coordinate domain.

无网格方法是近年来受到广泛关注的微分方程求解技术。

Instantaneous motions of the end effector of the typical industrial serial 6-DOF and 5DOF robots are also studied using reciprocal screw theory, The constrained and permitted motions at special configurations are given. Furthermore, the satisfied conditions for the special configurations are discussed, and in the reference coordinate system general expressions of the reciprocal screw and existed motion screw and the subspaces of the permitted rotational axes are obtained under all circumstances at special configurations.

本文中还用反螺旋理论研究了六自由度和五自由度工业机器人的瞬时运动，给出了它们在正常位形和特殊位形下的受约束的运动和存在的运动，以及它们在所有运动参数的不同组合下的反螺旋及存在运动螺旋系的一般表达式和转动轴线存在的子空间。

It is useful for the direct and inverse solution of geodesic problem and applying in digital elevation model and 3D GIS model. geodesic coordinate system ; direction angle ; geodesic line ; differential relationship

本文则进一步探讨测地坐标的一些微分性质和微分关系式。1 基于测地坐标的大地线的二阶微分方程按照曲面的内蕴几何学，由

The reason why quaternion is used in flight simulation of fighter aircraft and the geometric meaning of quaternion are described,according to axis system used in flight simulation of fighter aircraft in China,three problems are introduced as follows:(1) quaternion kinematic equations,(2) relationship of quaternion and coordinate transformation matrix,(3) Euler angles in terms of quaternion.

阐述了在战斗机的飞行仿真中采用四元数的原因和四元数的几何意义，并按照中国战斗机飞行仿真中采用的坐标系，介绍了三个问题：四元数运动学方程；四元数与坐标变换矩阵的关系；用四元数表示的欧拉角。

The electrostatic field distribution is obtained by means of a particular helix coordinate system.

用特殊的螺旋座标求出了该系统的静电场分布。

However, decentralized decision-making in the market system, if there is no internal mechanism for the coordination, there will be people's war "Hobbesian jungle", Therefore, in order to protect the human nature to give up the right to freedom of choice and effective in order to achieve the ideal habitat, a community needs to coordinate the individual right of choice, this power is now called the Government.

但是，在分散化决策的市场体制下，如果没有内在的协调机制，就会出现人与人作战的"霍布斯丛林"，因此，为了保障人类放弃自然权利而能有效自由选择，以便达到理想之境，社会需要一种来协调个人自由选择的权力，这种权力就是现在所称的政府。

The so-call'exportable equation'is found by nonlinear geometry method for general non-autonomous chaotic control systems which coefficient matrix of control term is functional matrix contained system variables. The homeomorphic transformation of coordinate is found under specified conditions, the coefficient matrix of control term can be transformed as constant matrix, the synchronization among chaotic systems can be realized by common control methods.

针对一般的非自治混沌控制系统中控制项系数矩阵是含有系统变量的函数矩阵，利用非线性几何线性化的方法找出所谓的"输出方程"，在一定的条件下求出坐标的同胚变换，将控制项系数矩阵变换为常矩阵，然后利用常规的控制方法进行混沌系统之间的同步化。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。