坐标原点

Asymmetrical dynamic propagation problems under the action of variable loads and (P^3t/x^2) located at the origin of the coordinates respectively, are resolved by the measures of self-similar functions, and the universal expressions of analytical solutions to stresses, displacements and stress intensity factors are gained.

采用自相似函数的方法对坐标原点分别受到变载荷Px/t、Pt^3/x^2作用下的非对称动态扩展问题进行求解，获得了应力、位移和动态应力强度因子解析解的一般表达式。

With regard to the central part, the actual state of coordinate axis is analyzed first, then the theory ofthe projection method is introduced. On the basis, the method of identifying coordinate origin ispresented.

在本文的核心部分——曲线识别中，文章首先从分析曲线图中坐标轴的分布情况出发，引出投影法，在此基础上提出了利用投影法识别坐标原点的理论。

By use of symmetry of integral domain to coordinate surface, coordinate axis and coordinate origin, some useful formula to compute the integral are constructed, which are illustrated very useful and effective.

通过对积分区域的对称性和被积函数的奇偶性的讨论，从积分区域关于坐标平面、坐标轴和坐标原点对称出发，建立了简化各类积分计算的常见公式，并用例于展示了公式的有效性。

First of all, the original input data weighted to calculate the weighted center of gravity after the data coordinates, will be moved to the coordinates origin Ping The center of gravity coordinates, re-normalized.

首先 将原始输入数据加权，计算加权后数据的重心坐标，将坐标原点平移到该重心坐标，再作归一化处理。

Three tool balls , cylinders or holes should be set on it and marked with origin of coordinates, coordinates direction, the relative value between origin of coordinates and that of vehicle coordinates.

并需设有三个测量基准球或柱或孔，并标明坐标原点、坐标方向及坐标原点与汽车坐标原点的相对坐标值。

System speaking of the Master CAM, first must establish the components the geometry model, according to the components actual size, draws its processing part the contour line, does not need to draw the entire components the model, guaranteed the computation production the cutting tool way coordinates accuracy, and may use the Master CAM Chinese Library level the function, when determination cutting tool way, transfers or the hideaway, the selective treatment needs contour line; Next, the formulation processing craft and the definite craft parameter, chooses the cutting tool, the processing semi finished materials, the work piece origin of coordinates again and so on, establishes the work piece coordinates system, definite work piece coordinate system and engine bed coordinate system relative size, thus obtains the components processing correct cutting tool way; Finally, the simulation function which system provides using the Master CAM, the realization simulation processing.

对于Master CAM系统而言，首先要建立零件的几何模型，根据零件的实际尺寸，画出其加工部分的轮廓线，无需画出整个零件的模型，以保证计算生成的刀具路径坐标的正确性，并可利用Master CAM中图层的功能，在确定刀具路径时，加以调用或隐藏，来选择加工需要的轮廓线；其次，制定加工工艺并确定工艺参数，再选择刀具、加工毛坯、工件坐标原点等，建立工件坐标系统，确定工件坐标系与机床坐标系的相对尺寸，从而得到零件加工的正确刀具路径；最后，利用Master CAM系统提供的仿真功能，实现模拟加工。

Crack propagation problems under the influence of the edges of the crack subjected to homogenous loads, the origin of the coordinates subjected to concentrated increasing loads, the central zone of the edges of the crack subjected to homogenous loads, the certain point of the edges of the crack subjected to moving unit step loads, the origin of the coordinates subjected to moving increasing loads Px m, the edges of the crack subjected to instantaneous impulse loads, the edges of the crack subjected to moving concentrated variable loads, the origin of the coordinates subjected to point loads, the edges of the crack subjected to a constant moving concentrated loads and the origin of the coordinates subjected to instantaneously moving impulse loads are studied respectively, and the analytical solutions of dislocation distribution function have been obtained.

同时对裂纹面受均布载荷、坐标原点受集中增加载荷、裂纹面中心区受均布载荷、裂纹面上某点受运动阶跃载荷、坐标原点受运动增加载荷Px m、坐标原点受瞬时冲击载荷、裂纹面受运动集中变载荷、坐标原点受集中载荷、裂纹面受常数运动集中载荷、坐标原点受瞬时运动冲击载荷作用下的裂纹扩展问题分别进行了研究，获得了位错分布函数的解析解。

So the article especially explores the ideological and political educations new coordinate structure and the connotation of the origin coordinate and the other axises under the WTO environment:The origin coordinate is the value orientation of the ideological and political education.

因此，本文着重对WTO环境中思想政治教育新坐标的体系结构以及坐标原点与各轴的具体内涵作了系统的开拓性分析探讨：坐标原点O是思想政治教育的价值取向。

Firstly, the original input data is weighted and the centroid coordinates are calculated, and the origins of coordinates are translated to their centroids.

首先将原始输入数据加权，计算加权后数据的重心坐标，将坐标原点平移到该重心坐标，再作归一化处理。

During the process, the whole position errors on the plane were measured by using the equipment that can only measure a small field. The positional errors on the entire plane table of CNC machine tools were obtained by measuring the error of the basic postion near the original point.

该方法以距离机床坐标原点较近的点（该点的误差直接通过测量仪器获得）为基点，从而获得离机床坐标原点较远位置点的误差，依此类推，最终获得整个机床平面上位置点的误差信息。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。