坐标原点

设平面上n个点为，坐标原点为。

Let n points in the plane as the coordinate origin is .

设z轴垂直向下，坐标原点取为地面，Q（z，f）为在t时刻离地面距离为z处的土壤含水率。

Assume z axis vertically downwards , and take ground as grid origin . Q ( z , t ) is the water-bearing rate at t time in z under ground .

然后通过叠加给出任意多个线段源（其延长线均通过坐标原点）在xy平面上给出各向异性的瞬时源函数GXY。

The instantaneous source function G xy of N linear sections , whose extend lines all pass origin of coordinates , are given by means of superposition .

采用自相似函数的方法对坐标原点受到脉冲载荷、增加载荷Pt作用下的动态问题分别进行研究，获得了应力、位移和应力强度因子的解析解。

The dynamic problems under the action of pulse loads and increasing loads P_t located at the origin of the coordinates respectively , are studied , and analytical solution on stresses , displacements and stress intensity factors is obtained .

一种方法是借助于Laplace变换及其微分性质，并将坐标原点选在荷载影响范围以外足够远的地方，在直角坐标系下实现了与柱坐标系下类似的求解方法。

One is similar to the method of the cylindrical coordinate system , with the help of Laplace transform and its differential properties and putting the origin of coordinates to a point enough distant from accessional loading .

将298.15K时各种液态聚合物的内压平方根λ和重复单元的摩尔体积Vm的乘积对它们的vanderwaals体积作图时，发现是一条通过坐标原点的直线。

The products of the square - root of internal pressure A and the molar volume of the repeated unit Vm for various polymeric liquids at 298.15 K are plotted against their van der Waals volumes . A straight line through the origin of coordinates is obtained .

利用刀补功能建立工件坐标原点

Establish of Work pieces origin of Coordinates by Cutter Compensation

空间中的一点连接到级坐标原点的直线。

A line connecting a point in space to the origin of a polar coordinate system .

得到了相对轨道过坐标原点，即与主星相撞的条件。

The conditions for collision , namely , the relative orbit passes through the origin are determined .

拖到绘图页上，然后将一个线端拖到坐标原点，一个线端拖到部件。

Drag onto the page , then drag one line end to ordinate origin and one to the feature .

结果表明，耦合图法仅适用于折线折点不在坐标原点时的情况。

The result indicates that the coupling chart method is only applicable when the inflexion does not locate at the coordinate origin .

以月球车的运动学模型为控制对象，分段镇定月球车的方向角、前向误差和侧向误差，最终使月球车镇定到坐标原点。

This controller is designed to stabilize angle error , front error and side error separately based on the kinematic model of the rover .

预处理阶段所采用的主要方法有去除噪声点、将坐标原点归一化到质量中心、平滑等。

The main method is removing noise points , putting the coordinate origin to the center of mass normalization , smoothing and so on .

结论在计算机上寻找坐标原点，构建新的坐标系，为大脑坐标系构建提供了一种新的方法和研究手段。

Conclusion It is a new approach to look for zero in building the cerebral coordinate system and establish the new coordinate system on computer .

线化直线通过绝对温度坐标原点，并在60℃温域内，达到0.01%的精确度。

The linearized straight line pass through the zero of kelvin temperature scale , accuracy comes to 0.01 % in the range of 60 ℃ .

为了控制绘图仪的累积误差，在绘制过程中，采用了坐标原点法，使累积误差减至最低限度。

In the process of drawing isogram the coordinates-origin method is used to control the cumulative errors of plotter and decrease them to the least .

所以，这个点，坐标原点（0，0）在这条直线上。

And then in this case actually then X is0.So the point , the original , the point with coordinates ( 0,0 ) is on the line .

本文以数学和物理相结合的方式，建立了关于电荷系统的物理图象：电荷系统是由中心位于坐标原点的各级多极子迭加而成。

In this paper , we establish physical image of elecric charge system by combining mathematics with physics : electric charge system be composed of superposition of multipoles .

推广了现行空间解析几何教材中空间图形关于“坐标原点，坐标平面，坐标轴”的对称性定理。

This paper extends the particular conclusions on the symmetry of the space figures in terms of the coordinate zero dot , coordinate plane and coordinate axis in Analytic Geomtry .

但是以现在为坐标原点，回顾过去十年，我们可以说这是可穿戴计算装置走出科幻电影进入现实生活的一个重要时刻。

But we may look back 10 years from now , and say this was the moment when wearable computing stepped out of the sci-fi films and into real life .

第一部分：引言。简单概括目前学术界关于中国文学现代化转型这一课题的研究现状，并强调科学确定中国文学现代化转型的坐标原点的重要意义。

Part I is the introduction which briefs the scholarship in the field of the modernizing transfer of Chinese Literature and emphasizes the significance of confirming the coordinate origin of the transfer .

有一段时间我好像成了生命的坐标原点。不管我往哪儿一站，那儿就会充满了生机，可是我一无所有。

It seemed I am the origin of coordinates of life in a period , as the place I stepped on was filled with life and vigour , but I do not have anything .

文章首先通过大量的仿真实验，验证了标准微粒群算法对那些最优值远离坐标原点和搜索区域中心的测试函数没有较好的仿真效果。

Many experiments are conduct to verify the poor performance of standard PSO ( SPSO ) on the functions whose optimum values are not in the origin of coordinates or the center of search area .

得到的解表明裂尖附近无量纲化的应力分量与所在点到坐标原点的距离无关，而仅取决于所在点的角度。

The solutions show that the normalized stress components on an arbitrarily point near the crack tip are determined by the angle of the point alone and independent of the distance between the point to the origin .

模块化设计，输入系统采用2×8键盘扫描方式，任意设定坐标原点参数，设置直线的起点与终点；

The system is designed in a manner of modular architecture . The input system employs a 28 keyboard through that the parameters of coordinate and the starting and end points of a straight line can be set at random .

若选择弹簧振子的平衡位置为坐标原点，无论弹簧振子处于何种均匀的保守力场中，其机械能守恒定律的最终表达式将完全相同。

If we choose the coordinate origin at the balance position of the spring oscillator , in any uniform conservation field of force , the formulation of mechanical energy conservation law of the spring oscillator will be the same form .

文章针对上述3种情况，以大跨越档低悬挂点为坐标原点，推导出架空线索悬垂函数和弧垂函数。

In view of the previous three cases the paper has derived the suspense sagging function of overhead wire ropes and sag function for the overhead wire ropes , taking the lower suspension point of the large crossing span as the origin of coordinate .

理论分析和数据计算都证实，这样不仅因消除了归化因子计算值的近似性而提高了解算精度，而且它也不再与坐标原点所在位置相关，从而亦使新型大地坐标系的适用范围有所扩大。

And it could be testified by calculation and proved that by this method , not only the accurate value of latitudinal scale factor of length can be obtained , but also the work range of the new form of geodetic coordinate system will be greatly enlarged .

从回旋曲线的曲率变化出发，导证了以回旋曲线上任一点为坐标原点的坐标计算公式，该公式可简化对卵型曲线、复合型曲线等复杂线型的点位坐标计算。

From the curvature variation of the clothoid , this paper derives the coordinate computing formula , which takes any point on the clothoid as its coordinate origin . The formula can make the computation simple for point to point coordinate and for other oval and composite curves .

随着扫描速度减慢，光源照射的初始位置接近坐标系原点、以及扫描轨迹与X轴倾斜角度的增大，光入射位置的计算值接近于真实值。

The computed incident position of light approaches to the true position as long as the lower scanning speed , the close starting position to the origin of the coordinate system or the greater gradient angle with X axis are obtained .