elliptic surface

The hoisting technique with button pole group was applied smoothly for installing the latticed shell with elliptic surface at Yuncheng Agriculture Exhibition Center .

运城市农业会展中心椭圆曲面网壳结构安装，采用了以拔杆集群为主的吊装方法，保证了工程的顺利完工。

Using Button Pole Group to Hoist Latticed Shell with Elliptic Surface

椭圆曲面网壳结构拔杆集群吊装技术

Three-Dimensional Finite Element Analysis of SIFs of Elliptic Surface Crack in Dimple Fastener

埋头紧固件椭圆形表面裂纹应力强度因子的三维有限元分析GB/T152.3-1988紧固件圆柱头用沉孔

Sparse circular or elliptic surface cells with space information can be extracted from dense point cloud by sub-sample .

对输入稠密点云采样形成稀疏圆或椭圆油彩，采样数据具有空间信息。

This paper presents the contour line equations of central projection of four surfaces widely known in engineering ( revolution surface , elliptic surface , quadric surface , and ruled surface ) .

本文给出了工程上常见的四种类型曲面，回转曲面、椭圆型曲面、二次曲面及直纹曲面的中心投影的轮廓和轮廓线方程。

The Middle convex and varied elliptic surface is divided into the three basic characteristics of middle convex , ellipse and varied ellipse , and each was described in mathematical manners .

将型面划分为纵向型线、椭圆、变椭圆度三个基本特征，对每一种特征给以恰当的数学描述。

In order to reduce prediction cost and to make classification model embrace variance information on feature dimension , a new Ellipsoid-plane classification approach is proposed in this paper . It is a two-stage supervised method , which uses elliptic surface and plane as reference surfaces for classification .

为了达到减小预测开销，同时又使模型兼备包含数据在特征维上方差信息的特点，本文提出了一种新的椭球-平面分类法，它是一个两阶段的监督型分类方法。

Finally , a kind of elliptic yielding surface is suggested according to test results of high stress under the symmetric triaxial stress condition .

最后，据高压三轴试验资料，建议了一种适应于对称三轴压缩情况的椭圆形屈服面。

The parametric equation deduced by inversion transformation for the projection of intersecting line of the ring surface with inclined elliptic taper surface can adequately satisfy the requirement of computer drawing .

反演变换推导出的圆环面与斜椭圆锥面相贯线投影的参数方程，完全满足计算机绘图的要求。

The Discussion on the Position of the Formation of Image of Paraxial Rayo Observing from Rarer Medium Image Regularity of Refraction of an Astigmatic Light Pencil at an Elliptic Parabolic Surface

在光疏媒质中看到平面折射成像位置的讨论

In this paper , to the research focus problem on high-speed precise manufacture of elliptic part surface , multi-axis movement controller PMAC based on DSP is introduced , a set of grinder NC system is designed and integrated , and a experimental NC grinder is reconstructed .

本文针对椭圆形零件表面的高速精密加工这一研究热点问题，介绍了以DSP为核心的多轴运动控制器PMAC，以此设计集成了一套磨床数控系统，并改造一台数控磨床。

A machining method for increasing precision of elliptic condenser cavity surface profile

一种提高椭圆聚光腔面轮廓度精度的加工方法

For elliptic cylinder and barrel surface crack , the stress intensity factor has much to do with crack size .

对于圆柱体和圆筒表面椭圆裂纹，其应力强度因子和裂纹尺寸有很大关系。