查询词典 three-wire system

Three moment method,the transition matrix method and finite element method in shipping shaft system alignment are used ,the application of finite element method in shipping shaft system alignment is proved to be more reasonable through an example .

并以某实船为例，利用三弯距法、迁移矩阵法和有限元法对船舶轴系进行校中计算，说明有限元法更先进合理。

The result of this thesis can provide the actual method to control the reactive flywheel better for the high accuracy satellite attitude control system. The key technique of the reactive flywheel applied in the high accuracy satellite attitude control system is mastered."Zero momentum control" at three mutually perpendicular axes of satellite is realized on the real meaning.

本文的研究成果为反作用飞轮的精确控制提供了实际的途径，掌握了反作用飞轮应用于高精度卫星姿态控制的关键技术，实现了真正意义上的卫星三轴"零动量控制"。

The article introduces the three-tier architecture of network file management system which is based on B/S model, composing elements and function design, discusses in detail the implementation of COM buffer in the system.

介绍了网络文件管理系统基于B/S模式的三层体系结构、构成要素以及功能设计，详细论述了COM缓冲在系统中的实现。

The main contents of this dissertation are as follows:1 A station orthogonal coordinate system, which is the reference coordinate system for the three-dimension adjustment of observation data of GPS dam deformation monitoring network, has been put forward.

主要包括内容以下：(1)提出了以站心地平坐标系作为GPS大坝三维变形监测网平差的参考坐标系，推导了在该坐标系下GPS大坝三维变形监测网平差的数学模型及公式；采用拟稳平差的方法对GPS大坝三维变形监测网观测数据进行处理。

Also, a method of quasi-stable adjustment and a software system researched and explored by Visual BASIC Language have been used to process the observation data of GPS dam deformation monitoring network..3 A mathematical model of three-dimension combined adjustment with GPS and other surveying data under station orthogonal coordinate system in deformation monitoring networks, has been brought forward.

提出了站心地平坐标系下GPS观测数据与其它地面测量数据三维变形监测网联合平差的数学模型，在数据处理模型中通过参数化的方法消除或减弱垂差和垂直折光的系统误差的影响。

Firstly, the three-dimension boundary question and its corresponding variation question concerning the point-source electrical field on a 3-D structure are presented. Secondly, the finite element method is used to solve the variational equation. The study area is divided into many tetrahedral elements. Then, we interpolate with a tri-linear function in each element. So, the variational equation is converted into a linear equation system. Finally, taking into account saving of time, we make use of symmetric successive overrelaxation preconditioned conjugate gradient algorithm to solve large linear system, and obtain the potential value of each node, resulting in the calculation of the apparent resistivity values on the ground surface.

首先给出了三维构造中点源电场的边值问题以及相应的变分问题；然后利用有限单元法求解变分问题，采用四面体单元对研究区域进行剖分，在单元中进行三线性函数插值，将变分方程化为线性代数方程组；最后，考虑到节约计算时间，利用对称超松弛预条件共轭梯度迭代算法求解大型线性方程组，得到了各节点的电位值，进而计算出地表的视电阻率。

Main functions in this system are as follows:(1) Establishes the project database of punching die initially;(2) Parametrization design of major parts-,(3) Three dimensional model and assemble of punching dies;(5) Moving simulation of punching die system.

该系统实现的主要功能如下；(1)初步建立冷冲模的工程数据库；(2)主要零件的参数化设计；(3)模具的三维建模及装配；(4)冷冲模系统的运动仿真。

Another was system designation of parliamentarism, cabinet sys tem and province autonomy system which would be practised in constitutional gove rnment period. They were neither new democracy of CPC, nor the Three Principles of the People of KMT. But were reformab...

二者虽然在性质上既非中共的新民主主义，亦非国民党所谓的"三民主义"，而是中间势力所一直向往和追求的改良的资本主义，但其在当时却满足了广大人民要求和平民主的普遍愿望，并成为了检验国共两党有无和平民主诚意的试金石。

Concerning the main difficulties the PEDEs encounter,the paper firstly establishes a competitiveness index system of Chinese PEDEs,and then makes an empirical study of several PEDEs from three dimensions of the index system: service level,timing level and price level,finally,suggestions are put forward to help the PEDEs foster their competitiveness.

文章在考虑快递产业基本特征的前提下，重点从民营快递企业目前面临的主要问题着手，建立了中国民营快递企业的竞争力指标体系，并在此基础上从服务水平、时效水平、价格水平三个方面实证分析了若干民营快递企业的竞争力，最后对民营快递企业如何培育竞争力提出了若干建议。

To take full advantage of all aspects of strength, and continuously improve the capability of independent innovation of Surveying and Mapping Technology to enhance the information infrastructure of self-protection mapping capabilities, a comprehensive benchmark system to promote infrastructure mapping, high-resolution three-dimensional mapping and surveying and mapping satellite system satellite applications, and enhance GIS Rapid access and update capability, enrich and perfect the digital mapping technology and equipment to promote the surveying and mapping technology and the optimization and upgrading of management tools to improve the geographic information collection, processing and the overall strength of the provision of services.

要充分利用各方面力量，不断提高测绘科技自主创新能力，提升信息化测绘基础设施自主保障能力，全面推进测绘基准体系基础设施、高分辨率立体测图卫星以及测绘卫星应用系统建设，增强地理信息的快速获取和更新能力，充实完善数字化测绘技术装备，促进测绘生产技术及管理手段的优化升级，提高地理信息采集、处理和提供服务的整体实力。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新