Maps (on paper or on the screen) are flat surfaces; they require a transformation from the curved surface of the earth to the flat plane: a map projection.
纸上或屏幕上的地图是平面的；它们需要从地球的曲面向平面进行转换：地图投影。
Map projection in cartography is a way to present a two-dimensional curved surface on a plane, such as a normal map. Figure 2 shows a Traverse Mercator projection.
绘图法中的地图投影方法可以在平面中表示一个两维的曲面，例如一个标准地图。
A two-dimensional model of such a universe would look like a sphere. It's impossible to have parallel geodesics (straight lines on a curved surface) — the two lines will cross at some point.
这样的2维宇宙模型就像是球体，不可能出现平行的测地线(测地线是曲面上的直线)——两直线必然在某点相交。
Thus the main polygonal wall appeared: this 20-meter long curved surface goes through all the open-space zone: entrance hall, tea room, garden, kitchen & dining zone.
因此我们设计了这面曲折的主墙：这面20米长的弯曲墙面联通所有开放式空间：玄关、茶室、花厅、厨房与餐厅。
This difficulty can be solved by flexible co-woven prepreg technology, facilitating the manufacture of complex curved surface structure with high quality and efficiency.
利用柔性混编预浸料技术则可解决这一难题，高质量、高效率地实现复杂曲面结构件的制备。
The curved surface rises along the shoreline, blocking the sea wind.
弯曲的表面沿着海岸线蔓延，将海风挡住。
Equal efficiency curved surface production function is a new concept.
等效益面生产函数是一个崭新的概念。
Wrinkling usually happens in the punching process of curved surface sheet metal.
曲面板件在冲压成形时常常发生起皱现象。
The stress boundary constitutes an important factor in drawing curved surface parts.
曲面零件拉深成形中，应力分界圆是非常重要的因素。
The resulting data were treated with tridimensional curved surface and two dimensional curve.
得到的试验数据应用三维曲面和二维曲线进行了处理。
Ceramic color composition and process for producing a curved surface glass sheet employing it.
陶瓷色料组成和运用该色料生产曲线表面玻璃板的工艺方法。
The lens consists of an array with any curved surface of revolution, or of dielectric material.
该透镜由任意旋转曲面形阵列或介质材料构成。
A quadrilateral mesh generation algorithm is presented for curved surface with line constraints.
提出了一种具有线约束的曲面四边形网格自动生成算法。
Surface intersections, concaves and shallow planes of the curved surface are difficult to machine.
曲面交线、曲面内凹区域及曲面中浅平面的加工是曲面加工的难点。
Of or relating to light emitted from a point source and reflected or refracted from a curved surface.
由一个点光源发出并从曲面反射或折射的光的或关于这种光的。
The definition and the deformations of planar mapping of a curved surface are presented in this paper.
论述空间曲面的平面映射定义及其变形；
This paper presents a simple and practical developing method for nonmetal curved surface aircraft parts.
提出了一种应用于飞机非金属曲面零件简便实用的展开方法。
Then several planar mapping methods of curved surface as well as their advantages and disadvantages are analyzed.
分析了空间曲面的几种近似映射方法，并同时分析了各种映射方法的优缺点；
And the curved surface formula of smooth link between twisting curved surface and cylinder surface can be obtained.
并构造出扭转曲面与圆柱面光滑连接的曲面方程，顺利实现了两种曲面的光滑连接。
Numerical calculation to regular curved surface shows that the results obtained by presented method is very precise.
对规则曲面的数值计算表明，该方法的计算结果具有很高的精度。
The measuring principle of large curved surface measurement system is intersection measurement of electronic theodolite.
大曲面检测系统是以电子经纬仪交会测量原理为基础的。
An effective method was brought forward to realize interactive selection of arbitrary point on parametric curved surface.
提出了一种实现参数曲面上任意点选取的有效方法。
The thickness measurement of the transparent curved surface object is investigated with the linear structured light method.
从实际应用角度出发，采用线结构光方法进行曲面透明壳体厚度测量的研究。
Theoretical error of curved surface by nc processing is analyzed based on the principle of nc processing of curved surface.
从曲面的数控加工原理出发，分析了曲面数控加工的理论误差。
This paper provided an effective algorithm of the oblique section shapes in the composite curved surface of automobile body.
提出了一种用于计算汽车车身复合曲面斜截面外形的有效算法。
To the scanning measurement of other complicated workpieces with space curved surface, it has very important referenced value.
本课题的研究对于空间曲面的复杂工件的扫描测量具有重要的参考价值。
The line of intersection, inward concave and shallow area of curved surface are the difficult points in curved surface machining.
曲面交线、曲面内凹区域及曲面中浅平面的加工是曲面加工中的难点。
With the majority of parts, namely those with even a slightly curved surface, clear powder coatings are as smooth as any liquid clear.
就大部分零件来说，即使是表面稍弯曲的零件，透明粉末涂层已可与任何透明漆比美。
The paper expounds the method of design about wave spring curved surface, the processing NC program and its technological processing course.
阐述了波形弹簧成形模曲面的确定及其数控加工程序的编制方法、加工工艺过程。
The paper expounds the method of design about wave spring curved surface, the processing NC program and its technological processing course.
阐述了波形弹簧成形模曲面的确定及其数控加工程序的编制方法、加工工艺过程。
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