精密

It can be applied in the field of micromanipulation and precision engineering, such as precision driving and positioning, optics engineering, etc.

该旋转驱动器在精密运动、微操作、光学工程、精密定位等精密工程中有广阔的应用前景。

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。

In order to solve this problem a new type of magnetic precision seeder has been proposed and designed by analyzing accurate sowing technology both at home and abroad.

为了较好地实现这类种子的精密播种，在分析了国内外现有精密播种技术的基础上，提出并设计了一种新型磁吸式精密播种机。

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。

Is only a small number of China metal powder injection molding one of the manufacturers, Main production PM powder metallurgy, powder injection molding, Precision Casting, metal structural parts, metal accessories, gears, Sleeve Bearing, precision components profiled complex, non-standard conditions, including : Sleeve Bearing, oil bearings, bushings, flanged connecting sleeve; Double gears, bevel gear, Pulley, synchronous wheel, sprocket, AK47 toy gun gear, various micro-precision gear drive; PM microporous filters, filter tubes, mufflers and filtration materials, Copper filters, stainless steel trap; mixer blades, coffee machine cutter heads Soymilk Machine grinding pieces Juicer blades, Juice blades, and household electrical appliances, metal accessories; Oscillator phone, cell phone parts and notebook parts; Metal keys, ATM machine keys; Toys accessories, fiber accessories; various copper, iron, and stainless steel products, alloy products; automobiles, motorcycles, machine tools, electrical machinery and office equipment, medical equipment and other types of machinery, electrical appliances, electric / pneumatic products within the precision components; Industries products within the structure of precision metal parts!

其中包括：烧结含油轴承、轴套、粉末冶金铜套、含油杯士、法兰、衬套、偏心含油轴承、球形含油轴承；粉末冶金齿轮、双联齿轮、伞齿轮、锥齿轮、同步皮带轮、链轮、棘轮、扇齿轮、双层齿轮、多层齿轮、直齿轮、斜齿轮、各类精密传动齿轮；粉末冶金烧结微孔过滤器、烧结过滤片、粉末冶金滤芯、滤筒、滤管、消声排气节流阀、青铜烧结过滤器；搅拌机刀片、绞肉机圆盘刀片、十字绞刀、铰刀盘、圆孔板、胡椒研磨件、豆浆机刀片、榨汁机刀片、果汁机刀片、咖啡机刀片、磨豆机刀片、家电五金配件；凸轮、凹轮、偏心轮、摆砣；手机振子、手机零件、笔记本零件；金属按键、ATM机按键；玩具配件、光纤配件；各种铜基、铁基、不锈钢制品、合金制品；汽车、摩托车、机床、电机、办公器械、医疗器械及其他各种机械、电器、电/气动产品内的复杂异形精密零件、非标准件；各行业产品内部用的精密金属结构零配件、五金配件。

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。

It is urgent to solve how to produce it efficiently and economically.In this paper, with the guidance of precision forming complex components, basing on the forming theory of obturated-extrusion, combining the technique of hot extrusion, considering the characteristics of steering knuckle, so the one-step precision obturated lateral-bend extrusion forming method and the two-step forming method are presented.

本文以复杂零件的精密成形为指导思想，根据闭塞挤压成形理论，结合热挤压技术，针对轿车转向节零件的自身特点，提出轿车转向节零件的闭塞侧弯挤压精密一步成形法和闭塞侧弯挤压精密预制坯与开式终锻相结合的两步成形法两种工艺。

The spindle selects enclosed rolling bearing for supporting; vertical and horizontal drag board are adopted with enclosed rolling rod drive; body guide ways are casted with abrasion-resistance iron quenched with super frequency and milled precisely, and all these contribute to a long-term processing precision and a long lifespan; 5.5KW motor serves as the main motor contribute to a stronger turning capacity and larger rotary speed range; Workpiece clamping is are adopted withed with spring collet, it can also be equipped with hydraulic chuck, four-spindle oil cylinder, pneumatic, hydraulic tail stock.

CK6232数控车床是一款高刚性封密数控车床，特别适宜粗精加工，整机造型稳重大方，全封闭护罩防护，主轴采用精密刚性轴承支撑，纵横向拖板采用精密滚珠丝杆传动，床身导轨采用耐磨铸铁铸造，经超音频淬火及精密磨削，能长期稳定的保证加工精度和使用寿命；主电机选用5.5KW 的电机，使主轴有更强的切削能力和转速范围；工件装夹方式选用弹簧夹头，也可按用户要求配置手动卡盘、液压卡盘，气压、液压尾座。

My company specializing in the production of: sophisticated detection granite slab, granite platform, granite Jiaochi spent Shek Kong cubic feet, granite-foot, granite parallel regulation, to me granite, V-shaped granite blocks and measuring the surface, such as precision measuring instrument measuring tools, machine tools and various table, beams, rails, X-axis , Z axis, and other precision machine tools complement the granite mechanical components, test cast iron plate, flat-panel line, welding flat, T-shape groove assembly platform, the electrical test table, cast iron-foot, curved panels, to me, machine inquiry Seized equipment, machine tools test wand and machine adjustment Sizing Block, machine tools Earthquake Sizing Block, machine bed casting, mold Dianban, laboratory based flat-panel, slot Rail pad me, and so on.

我公司专业生产：花岗石精密检测平板、花岗石平台、花岗石角尺、花岗石方尺、花岗石平尺、花岗石平行规、花岗石方箱、花岗石V型块和测量表面等精密量仪量具，以及各种机床工作台，横粱、导轨、X轴、Z轴等与精密机床相配套的花岗石机械构件、铸铁检验平板、划线平板、焊接平板、T型槽装配平台、电机试验工作台、铸铁平尺、弯板、方箱、机床研检具、机床检验棒、机床调整垫铁、机床防震垫铁、机床床身铸件、模具垫板，实验室基础平板，槽铁垫箱等。

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。