坐标

The one-dimension discrete ordinates theoretical model, which is applied to study the characteristics of slowing-down materials used to construct the epithermal neutron filter at XPR, is for the first time developed in our country. The results show that the one-dimension discrete ordinates code ANISN is successful for studying properties of moderator.

其次，开发、修改了国际通用屏蔽计算程序ANISN，在国内首次建立慢化材料特性分析的一维离散坐标计算模型，研究了西安脉冲堆超热中子过滤器所需慢化材料的特性，结果表明，采用一维离散坐标程序ANISN来分析慢化材料的特性是成功的。

By detailed comparion, it is shown that false scattering and ray effect exact not only in discrete ordinates method, but also in zone method,discrete transfer method,etc,and the influence of false scattering and ray effect on solution accuracy of radiative transfer eqution

离散坐标法由于可以很方便地处理入射散射项，因此离散坐标法在计算有散射的辐射问题方面要优于现有的其它方法，且易与流动方程联立求解。

Under a serious analysis of current commercial profile machine, a three-coordinate reverse model building machine is put forward according to the experimental requirement.

在认真分析了目前国内已有的商用三坐标轮廓仪机构的基础上，根据实验需求，设计研制了一套三坐标反求建模硬件试验机。

Now we, as the composite optical probe coordinates (2.5 million), the CMM, the second yuan camera projection measuring machine, Chao Shu-optical probe of the professional producers, both in the relevant core technology with independent knowledge of technological property rights , Is especially worth noting that our YXB the probe successfully developed greatly reduced the company's costs, YXB probe has therefore become the world's probe of the industry one of the semi-finals.

如今我们作为光学探针复合式二坐标（2.5次元）、三坐标测量机、二次元摄像投影测量机、光学探针式抄数机的专业生产商，在相关核心技术上都拥有自主知识技术产权，特别值得指出的是我们的YXB测头的研发成功大大降低了公司成本，YXB测头也因此成为世界测头行业的四强之一。

Tunnel group construction control net is laid out on the basis of Xiaolangdi GPS firstorder control network. For convenient and fast setting out, firstly established a coordinates system of to take every tunnel axis as northward, transformed national geodetic coordinates which is original tunnel design adopted into every tunnel＇s construction coordinates.

洞群施工控制网是在小浪底GPS首级控制网的基础上布设的，为便于施工和快速放样，首先建立以每条遂洞轴线为北方向的坐标系，并将隧洞原设计采用的国家大地坐标转换为每条隧洞的施工坐标。

This paper introduces the method of traverse survey using direct measuring three-dimensional coordinates of control point by electronic total station instrument.

介绍采用蔡司C 20全站仪直接测定控制点三维坐标进行导线测量的作业方法，突破了传统的导线测量模式，不需分别测边、测角及内业计算就可自动测定三维坐标并自动平差。

This chapter provides a mathematic model for the transformation between two images obtained from the same scene. Based on pin-hole camera model, the relationship between the coordination of two images is discussed using two camera models, and it is proved that geometric relationship of two images obtained from one scene satisfies affine transformation.

论文在透视投影成像模型基础上，用两个不同相机在不同位置对空间中同一点成像，推导出对应点在不同图像中像素坐标之间的解析表示形式，证明了像素坐标之间满足仿射模型，同时分析了图像之间满足仿射模型时应具备的条件。

This chapter provides a mathematic model for the transformation between two images obtained from the same scene. Based on pin-hole camera model, the relationship between the coordination of two images is discussed using two camera models, and it is proved that geometric relationship of two images obtained from one scene satisfies affine transformation.

论文在****投影成像模型基础上，用两个不同相机在不同位置对空间中同一点成像，推导出对应点在不同图像中像素坐标之间的解析表示形式，证明了像素坐标之间满足仿射模型，同时分析了图像之间满足仿射模型时应具备的条件。

Based on the principle of Hamilton, dividing the main blade, flexbeam and torque tube into several beam elements, the bearingless rotor is nonlinearly modeled in this paper through modal transformation. By Newton-Raphson iteration and temporal finite element method, the above nonlinear equations are solved.

将无轴承旋翼的主桨叶、柔性梁和套管3个部分各自离散成若干梁单元，并将桨叶运动的物理坐标转换为挥舞、摆振、扭转方向的模态坐标，根据Hamilton原理建立旋翼气弹分析的动力学模型。

ABSTRACT Based on analysis of form-surface hard turning control, the concept of form-surface hard turning 5-axis simultaneous control and design scheme of turning simultaneous tool post are proposed in this paper.

本文在分析硬型面数控车削加工控制要求的基础上，首次提出了硬型面数控车削加工五坐标联动控制的概念，并提出了硬型面数控车削加工机床联动刀架的设计方案，填补了数控车削加工多坐标技术的空白。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐