精密的

Our factory is equipped with single/double screw extruders of high national and international standards, production line of banbury mixers, imported high-tech computer color monitoring instruments and precision electronic measuring instruments.

本厂拥有国际、国内高精密水平的单双螺杆机、密炼机组生产线、进口高科技电脑测色仪和精密电子计量仪。

The technology of error compensation based on Multi-Body system and the design method of cam machining were combined together.

针对精密凸轮加工中存在的精度问题，推导出凸轮磨削中的理想砂轮中心包络线的求解方程，进而将基于多体系统理论的误差补偿技术与凸轮加工设计方法相结合，研究了理想数控指令的生成方法、砂轮轮廓误差的计算方法、精密数控指令和逆变凸轮廓型的求解算法，在此基础上，开发出凸轮精密磨削过程的误差补偿与动态仿真分析软件。

Products for the caliper, micrometer, dial indicator, dial gauge, lever scale thickness measurement tools, etc., as well as precision projector, instrument measuring microscopes, video measuring instrument, the second element altimeter, three-coordinate measuring instrument of precision measuring instruments, etc. mainly used for scientific research units, teaching the field, aerospace, automobile, shipbuilding, electronics, metal, plastic and many other fields in nanotechnology today, represented by technological innovation, it is necessary to adapt to the ever-changing industry needs, constantly drawing and the use of advanced science and technology, high-precision measuring instruments for scientific research in manufacturing has played a role as a bridge has been all over the world the user's trust and support.

产品为卡尺、千分尺、百分表、千分表、杠杆表、厚薄表等测量工具以及精密投影仪、工具测量显微镜、影像量测仪、二次元高度仪、三坐标测量仪等系统精密测量仪器，主要用于科研单位、教学领域、航空航天、汽车、造船、电子、五金、塑料等许多领域，在今天以纳米技术为代表的技术革新，要适应千变万化的产业界的需求，不断的吸取和运用先进的科学技术，高精密测量仪器在为科研制造等方面起到了桥梁作用，得到了全世界各用户的信赖和支持。

This thesis focus on GPS application in magnetic suspension engineering:① the formulation of oblique cylindrical projection is worked out according to characteristics of long distance precise engineering and map projection theory. The author has developed an application to accomplish coordinate conversion from generally used coordinate systems to oblique Maglev Coordinates System.② considering not only project peculiarities but also position of control points, selection of initial points, connection type, selection of repeat baseline and ground observed quantities, GPS network is designed on electronic map and we may extract GPS network information by program developed using Visual Basic 6.0 while the results are stored in control point file and baseline vector file.③estimate accuracy of various GPS networks designed on electronic map by method of 2D restriction adjustment. GPS network simulation design and accuracy estimate come true.④Predominate the rules how connection type , repeat baseline and precise baseline of range finder influence GPS network precision through comparing accuracy of various GPS network. Thereby, the solution how to establish GPS network in long distance precise engineering is figured out.

本论文主要研究GPS技术在磁悬浮工程中的应用：①根据长距离精密工程的特点，从地图投影原理出发，推导出斜轴圆柱投影的应用公式，并编制计算软件，实现从常用坐标系统向斜轴磁悬浮坐标系统的转换计算；②在AutoCAD电子地图上，根据工程的需要，并充分考虑控制点的点位、起算点的选择、连接方式、重复基线的选择和地面观测量的选择等因素，在电子地图上进行GPS网的设计，根据Visual Basic 6.0语言编程，提取出GPS网资料，保存在控制点文件和基线向量文件中；③对在电子地图生成的各种类型的GPS网进行二维约束平差的精度估算，实现了GPS网的模拟设计与精度估算；④通过对各种控制网的精度比较，掌握连接方式、重复基线、精密测距仪基线对GPS网精度影响的规律，解决了长距离精密工程GPS网的建立方法。

High-precision spherical components have been widely used in precision machinery and aerospace industry, and spherical curvature is one of determinant to the capability of optical components, and the measure of it is an important matter in the optical component manufacture. So the research of the high precision measurement of spherical curvature has important significance.

中文摘要高精度球面元件在精密机械和航天工业中的应用越来越广泛，在光学生产的加工制造过程中也大量需要对具有球面形状的透镜的曲率半径进行高精密测量的情况，因此，球面元件曲率半径的精密测量对高质量球面样板，光学系统的质量控制等方面具有重要的意义。

By means of declinate optical triangulation measuring instrument structure which is firstly proposed, the measured area and resolution of this measuring system are greatly increased, and the high accuracy non－contact measurement of the planeness of a large area plane is realized.

提出的虚拟精密基准的建模与误差补偿技术，解决了在非精密基准上实现精密测量的问题，研制的系统利用现有平台可实现对太阳帆板平面度的高精度测量。

Then applying Human Simulated Intelligent Control algorithm to the turntable control system has been designed to resolve the problems, which the load of the pitch channel is asymmetric and the rail's friction is uneven. The method has been verified in the real control system, and meets the requirements of the precision of turntable position. In finally, the algorithm has been simulated and tested correctly in matlab.

然后针对精密达位电动转台的俯仰通道负载不对称，导轨摩擦力不均匀等特点设计了适用于此系统的仿人控制算法，并在精密达位电动转台的实际控制系统中的得到了验证，使转台满足了精密达位的要求，最后结合matlab仿真检验了此算法的正确性。

Tianjin, Zhi-xiang Precision Electronics Co., Ltd. is a Taiwanese joint venture. In January 1998 in the mainland to set up Johnson hardware factory in Dongguan, in July 2001 in Kunshan, Jiangsu to establish Ho Li Precision Electronics Ltd., with the market development and customer demand and in December 2006 the establishment of Jinnan District in Tianjin, Zhi-xiang precision Electronics Co., Ltd., mainly engaged in import of beryllium copper, phosphor bronze plate, yellow copper, S301, S304 stainless steel plate, aluminum material, SK5, SK7 high-carbon steel and high-conductivity copper a variety of different materials such as copper metal materials, meanwhile, should customers request a variety of sizes of sub-section, shear processing.

天津志翔精密电子有限公司是一家台商合资企业。1998年1月在大陆东莞设立德昌五金厂，2001年7月在江苏昆山设立合利精密电子有限公司，随着市场的发展与客户的需求与2006年12月在天津津南区设立志翔精密电子有限公司，主要经营进口铍铜、磷青铜板、黄铜板、S301、S304不锈钢板、铝材、SK5、SK7高碳钢及高导电红铜铜等多种不同材质的金属材料，同时，应客户要求可进行各种尺寸的分条、剪切加工。

The six groups within Enraf are: Enraf Terminal Automation (precision measurement systems and software for tank storage companies), Enraf Calibron Systems (small volume provers and liquid density meters), Enraf Contrec Ltd.(fuel Management Systems used by the petrochemical industry at bulk tank storage sites), Enraf Fluid Technology (custom-engineered explosion-proof precision blending and additive metering equipment), Enraf Marine Systems (level measurement systems for marine applications) and Enraf Tanksystem SA (mobile precision level measurement systems used on board ships).

Enraf控股的六个集团为： Enraf 终端自动化（用于油罐存储公司的精密测量系统和软件）、 Enraf Calibron系统（小量校准仪和液体密度仪）、Enraf Contrec公司（用于石化工业大量油罐存储场的燃料管理系统）、Enraf 射流技术（工程定制防爆精密混合和添加计量设备）、Enraf 航海系统（航海应用的水平面测量系统）以及Enraf Tanksystem SA（用于船上的移动精密水平面测量系统）。

With a history of nearly 50 years, the Institute has researched and developed the following major technologies and products: vertical/horizontal machining center, precision and ultra-precision machine tool,ball screw, coordinate measuring machine and other precision measuring instruments and equiment,pneumatic-hydraulic/electro-hydraulic technology and concerned products; EDM technology and equipment; NC system and driving device; laser machining technology and relative product; computer application technology,etc.

北京机床研究所具有国内领先的技术水平和实力及近五十年的数控机床技术开发、应用、维护经验，为用户提供全程的、全方位的技术支持服务。近五十年来，我们从事研发的主要技术与产品有：立卧式加工中心；精密及超精密机床；滚珠丝杠副；三坐标测量机及其它精密测量仪器设备；气液电液技术及相关产品；电加工工艺及设备；数控系统及驱动装置；激光加工技术及相关产品；计算机应用技术等。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。