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map
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  地图
    Study on Formal Representation of Geographic Ontology and Its Application in Map Services
    地理本体的形式化表达机制及其在地图服务中的应用研究
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    Design and Implement of Navigation Digital Map Based on Mobile Terminal in LBS
    LBS移动终端导航电子地图设计与实现
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    A Discussion on Some problems In Map Projection Transformation
    关于地图投影变换中若干问题的探讨
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    A MUNICIPAL INFORMATION MANAGEMENT SYSTEM WITH CITY MAP USER INTERFACE
    以地图为用户界面的城市信息管理系统
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    Map Drawing of Spherical projection of a Satellite Orbit Coordinate with a Computer
    卫星轨道坐标球面投影地图的计算机绘制
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  映射
    The character Retrieval Algorithm of Direct Map
    直接映射式字符检索算法
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    Ahe Algorithm of Texture Mapping Based-on Topographic Map
    基于地形图的纹理映射算法
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    A MAP SORT ALGORITHM FOR K-CHANNELS MERGENCE
    映射式K路合并排序算法
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    Research of Map Sort Algorithms
    映射排序算法研究
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    Two Algorithms Based on Map Sort
    基于映射排序的两个算法
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  地形图
    Design and Implementation of a General Large-Scale Topographic Map Processing System
    通用大比例尺地形图处理系统的设计与实现
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    CALCULATION OF TOPOGRAPHIC MAP NUMBERING BY FORMULAS
    用公式法计算地形图的图幅编号
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    Ahe Algorithm of Texture Mapping Based-on Topographic Map
    基于地形图的纹理映射算法
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    The Digitization and Output of Topographic Map in Scale of 1:500 in Urban GIS
    城市GIS中1:500全要素地形图的数字化与图形输出
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    Implementation Techniques of Engineering Topographic Map CAD System on PCs
    工程地形图CAD系统在PC机上的实现技术
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  “map”译为未确定词的双语例句
    Human Eye Localization and Face Recognition Based on Binary Edge Map
    基于二值边缘图像的眼睛定位和人脸识别
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    Research on the Method of Parametric Design of Resources Map in Resources Information System
    资源信息系统中参数化图形设计方法研究
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    SOLUTIONS OF LOGIC EQUATIONS WITH KARNAUGH MAP
    用卡诺图解逻辑方程
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    An Analysis and Application of the MAP 3.0 OPP Interface Software
    MAP3.0接口软件OPP的分析与应用
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    THE APPLICATION AND STUDIES OF VARIABLE SCALE MAP PROJECTION TO URBAN TRAFFIC AND TOURIST MAP
    变比例尺投影法在城市交通游览图中的应用与研究
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  map
We define a map from an affine Weyl group to the set of conjugacy classes of an ordinary Weyl group.
      
We show that they are induced by automorphisms ofG and that a surjective holomorphic self-map can be nonbijective only in the directions of the nilradical ofG.
      
We modify the Hochschild φ-map to construct central extensions of a restricted Lie algebra.
      
Iff1,f2 generate this ring, the quotient map of φ is the mapF:?3→?2,x?(f1(x), f2(x)).
      
An order-reversing duality map for conjugacy classes in Lusztig's canonical quotient
      
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There are five methods of measuring land surface area on topographical maps. A paper has made a detailed comparision between the complicateness of the various methods; it has, however, not indicated their internal relationships nor made a com- parision between the results obtained by the various methods, as to what extent they approach the actual surface area. The author of the present paper attempts to prove by the fundamental formula of area and the principles of approximate calculation the mutual relationships...

There are five methods of measuring land surface area on topographical maps. A paper has made a detailed comparision between the complicateness of the various methods; it has, however, not indicated their internal relationships nor made a com- parision between the results obtained by the various methods, as to what extent they approach the actual surface area. The author of the present paper attempts to prove by the fundamental formula of area and the principles of approximate calculation the mutual relationships between the various methods; accordingly, derives the non-equality between the values obtain- ed by them and at the same time, compares their merits and defects according to their approximation to the actual area. Furthermore, the author makes a study by elementary method of the closeness of different asymmptotic numeral values to the ac- tual area for ditffterent shapes of surface, which enables us to choose the most reaso- nable formulae of calculation in practice. Then, the author suggests a graphical method, based on the same principle of he above analysis, which simplifies the calculation work of the most accurate but more complicated Hua Lokeng and Wang Yuan s method. Lastly, based on the same principle, the anthor derives a set of new formulae, which are as accurate as the existed fomulae, but do not require the process of measuring the area on topographical maps. Hence they are especially useful in case of having no planimeter.

在等高线地形图上量算面积的方法已有五种之多,在文献[3]中曾着重在繁简方面对各种方法作了详细的比较,但未指出各种方法的内在联系,也没有比较各种方法所得结果在怎样的程度上逼近表面的真实面积。本文首先由面积的基本公式和近似计算的原理,指出各种方法的来源和其间的相互关系,並导出了这些方法所算得数值之间的不等式,同时又在逼近真实面积的程度上比较了各种方法的优劣。接着用初等方法,研究了各种渐近值对怎样的表面才趋于真实面积,从而使其在实际应用时,能据此选出最合理的计算公式。其次,利用证明上述问题的方法,提出了简化计算的图解法。使精确性最高但计算繁难的华罗庚、王元方法变得简易可行。最后,根据同样的原理提出了一组新的公式,並与原公式相比,证明了新方法具有同等的精确性,而且省略了在地形图上量测面积的过程,因此在没有求积仪的情况下,就显示出了新方法的实用价值。

This Paper describes the advantages of the Mercator projection Based on actual examples, it discusses the application of "slice" and "cut" of round projection to map-making in china.

本文阐述了墨卡托投影的优越性,并以实例为基础,对“切”与“割”园柱投影在我国海疆国的应用进行了分析.

In this paper three theoretical problems in map projection transformation using po- lynomials have been discussed.These problems are:The general characteristics of con- vergency of the functions of a map projection transformation;the convergency in the process of approximation of the functions of a map projection transformation with poly- nomials and the maintainance of topological character of the original figure in poly- nomial transformations.

本文讨论了用多项式进行地图投影变换的几个理论问题:即地图投影变换函数的一般收敛特性;多项式对投影变换函数逼近过程的收敛性及多项式变换保持原图象的拓扑性三个问题。

 
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