在这个时候，拓扑学被称做位置几何学。
At this time the subject of topology was known as analysis situs.
在这个时候，拓扑学被称做位置几何学。
At is time the subject of topology was known as analysis situs.
矢量数据指的是通过几何结构定义的数据，如线段表示街道，而点表示位置。
Vector data refers to data defined by geometric constructs, such as line segments representing a street or points representing single locations.
差异的产生则是由几何位置，大气状况以及语种的不同造成的。
The difference is a matter of geometry, atmosphere, and language.
使用带有位置和几何指示器的Xdmx配置文件可以创建满足工作环境的任意数量的拓扑。
Use your Xdmx configuration file with the location and geometry specifiers to create any number of topologies that suit your working environment.
如果物体通过几何变换而被放置在世界坐标系中，比如通过平移和旋转，那么视图跟踪他在世界坐标系中位置变换的轨迹可能会是一个艰难的工作。
If the object is positioned in the world through geometric transformations, such as translations and rotations, then keeping track of its position in world coordinates can be a hard task.
然后根据特征点的几何定义，利用轮廓线的位置、曲率等信息自动提取特征点。
Characteristic points can be extracted by considering the geometry definition, the position and curvature of each point on the contours.
注释，文本，几何形状以及其他的图表位置注释。
Comments, text, geometric shapes and other diagram-local annotations.
根据特征点的几何定义，利用轮廓线的位置信息、曲率等属性来提取特征点。
Lastly, the characteristic points can be extracted by the geometry definition of them and the position and curvature of each point on the contours.
我利用相同的方法创建花朵。我制作了一个一体化的花朵贴图，然后使用贴图扩展工具移动其位置以适应几何体。
I made the flowers in exactly the same way. I made an all-in-one flower texture, and used ThruPaint to move the position to fit the geometry.
本文引入解析几何，借助计算机对钻孔位置进行较精确计算。
In this paper, analytic geometry is drawn into drilling hole position calculation and have the aid of computer, the calculation is accurate.
通过对侧视雷达图像进行合适的辐值校正和几何校正后，就能获得色调均匀、位置准确的镶嵌图像。
The Mosaic images with uniform tone and accurate position can be obtained after the suitable radiation correction and geometric correction for SAR images.
最后，本文以实例分析讨论了横向剪切变形、开孔大小、线布载荷位置和几何参数对临界载荷的影响。
Finally, some examples are given to show the effect of shearing deformation, the hole size, the position of linear load and the geometrical parameter on the critical load.
将整体壁板分解为特征的集合，并进一步将特征分解为特征的位置、方向、几何尺寸、布尔运算等信息的集合。
An integral wing panel is represented as feature sets, and the features are decomposed as information sets such as location, direction, geometric size, Boolean operation etc.
并联机床；CAD变量几何；欧拉角；运动学；静力学；自由曲面；位置正解。
Parallel Machine Tool; CAD Variation Geometry; Euler Angle; Kinematics; Statics; Free-form Surface; Forward position.
用圆弧投射法解决圆锥曲线与其它空间几何要素的相互位置问题，可使作图更为简练、精确。
By using circular arc project, the relative positions of the conic curves and other spatial geometrical elements can be solved for simplified and precise drawings.
数控加工程序中的坐标值，关系着机床上加工工件的位置、尺寸和几何形状等，是数控加工程序中的重要内容。
The coordinate value in NC machining process is related to predetermine position, size, geometry shape of the processing workpiece of the machining.
提出一种十二面体变几何桁架机器人机构正位置分析的代数求解方法。
An algebraic method is proposed for the forward displacement analysis of the dodecahedral variable geometry truss manipulators.
基于这种统一的表示，本文给出了简洁的几何元素位置关系的判断方法以及获得一致性的完备推理规则。
Based on these unified representations, this paper gives a succinct method to obtain positional relations between geometric elements, and a group of complete reasoning rules to make them consistent.
当卫星几何位置好的情况下，铷钟用于改善垂直精度，顺便还较正气压计的精度。
When the satellite geometry is good, the rubidium clock is used to improve vertical accuracy, and in turn, the calibration accuracy of the barometer.
从XML文件中提取几何形体，并确定其位置关系，形成了工程图形数据仓库。
An engineering graphic data warehouse is generated contained geometric shape data and related positional data, which are extracted from XML file.
几何轮廓参数包括尺寸参数、位置参数、形状参数以及表征频域特征的谱参数等。
The geometrical parameters of a contour include its dimension, position, form error and form spectrum.
认为为油气勘探服务的分类应着眼于油气藏的形成原因、几何特征及其位置特征。
The classification for the service of oil and gas exploration should focus on how reservoir have been formed, what geometry features they have as well as what location features they have.
如何提高数控机床的几何位置精度成为目前研究的关键问题。
How to improve geometric positioning accuracy of CNC machine becomes an significant issue of present research.
探讨了导线的几何位置及其尺寸对电晕放电的影响，最终得出最优改善措施。
Geometry of the wire location and size of the corona discharge effect, concluded that the best improvements.
数控机床几何位置精度是机床评定的重要指标，直接影响到机床的加工精度。
Geometric positioning accuracy which is an important indicator of Computer Numerically Controlled (CNC) machine assess directly affects machining accuracy.
目的研究凹球面超声换能器的声焦域在高声强和媒质有较大衰减情况下，其形状和几何位置的变化。
Objective the variations of the site and shape of focal region for a concave spherical ultrasound transducer in the case of high sound intensity and stronger attenuation were studied.
结果表明：表面裂纹各点的扩展速度与其所处的位置和容器接管的几何参数有关，且其扩展平衡状态为一不规则形状。
The results show that the rate of the growth of each point on the surface crack is connected with the place of crack and the structure of nozzle, and its steady shape is some of complex curve.
其优化模型包含两类设计变量：几何位置变量和几何尺寸变量。
The optimization model contains two kinds of designing variables: geometric position variable and geometric dimension variable.
其优化模型包含两类设计变量：几何位置变量和几何尺寸变量。
The optimization model contains two kinds of designing variables: geometric position variable and geometric dimension variable.
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