principal section是什么意思

网络释义

用法例句

Triangle mesh surface reconstruction based on Kohonen neural network and fuzzy clustering technique;

基于模糊聚类的Kohonen神经网络三角网格曲面重建

Fast algorithm for surface reconstruction from cloud data based RBF neural network;

基于RBF神经网络的点云数据曲面重建快速算法

A fast surface reconstruction algorithm based on border-estimation for 3D unorganized points;

基于边界检测的三维散乱点快速曲面重建算法

The experiment of surface remelting for gray cast iron with a pulsed 1kw Nd:YAG laser was crried out.

文章报道了用千瓦级N d:YAG脉冲激光器对灰铸铁HT 200进行表面重熔的实验。

It report that the experiment of surface remelting for nodular cast iron(QT600) with a pulsed 1?kW Nd:YAG laser.

报道了用千瓦级Nd:YAG脉冲激光器对球墨铸铁QT600进行表面重熔的实验。

In a reference frame attached to the moving heat source, for example, surface remelting, a fixed grid eathalpy-porosity method was used to deal with phase change problem, and the momentum and energy changes caused by moving heat source were taken as additional sources to formulate control equations which are discretised and solved using control-volume-based compotational method.

对有移动热源的表面重熔问题，在固定坐标系内，采用固定网格、焓－孔隙度法处理相变，并将移动热源引起的能量、 动量方程的变化作为附加源项构建控制方程组，使用控制容积积分法对其进行求解，数值模拟了激光扫描条件下熔池内传热、相交 及流体流动的情况；利用所开发的软件对同一扫描速度、不同激光输入功率条件下不锈钢材料熔化与凝固过程中温度场、速度场进 行了比较与分析。

Molecular dynamics simulation for Si(100) surface reconstruction under two kinds of potentials and dimer's formation process;

两种势下的Si(100)表面重构及二聚体形成过程的分子动力学模拟

This paper reviews surface reconstruction behaviors,development of research techniques in the field of surface reconstruction,reconstruction mechanism,influence of polymer structure,and so on.

综述了高分子表面重构研究手段的发展、表面重构的机理与高分子结构对重构的影响等,并对高分子表面重构研究的应用前景进行了展望。

A deformable mesh model was presented for surface reconstruction from a finite 3D point set.

针对有限三维点集的表面重构问题 ,提出一种可变形网格模型的建模方法。

Optical metallographic microscope and electron-probe testing methods are used to analyze the fine crack, spall and fine cleft of U71Mn heavy rail tread.

采用光学金相显微镜和电子探针分析仪等测试方法对U71Mn重轨踏面发纹、缺损和小裂口缺陷进行了分析。

Research on Curve Approximation and Surface Reconstruction in CAD;

CAD中曲线逼近和曲面重建问题的研究

B Spline Curve and Surface Reconstruction Based on Genetic Algorithm;

基于遗传算法的B样条曲线曲面重建

Adaptive Cubic B-Spline Approximation on Curve and Surface Reconstruction;

曲线曲面重建中的三次B样条自适应逼近算法

Research on Surface Reconstruction in Reverse Engineering;

逆向工程中曲面重建的若干问题研究

Research on Key technologies of Surface Reconstruction from Measured Points;

测量点集曲面重建若干关键技术研究

Research on Surface Reconstruction and Rendering Based on Scatterd Data;

散乱数据的曲面重建及绘制方法研究

Research on Modeling and Application of Reverse Engineering Surface Reconstruction;

逆向工程曲面重建技术的研究与应用

Surface Reconstruction from Unorganized Data in Level Set Method;

基于Level Set方法的散乱数据曲面重建

A Study on Surface Reconstruction of Sheet Metal CNC Incremental Forming

金属板材数控渐进成形曲面重建研究

Research on Parallel Algorithm of Voronoi Diagram in Surface Reconstruction

曲面重建中Voronoi图的并行算法研究

NURBS Surface Reconstruction Based on Neural Network

基于神经网络的NURBS曲面重建

The Anatomical Study of the Facial Nerve Canal Using Curved Planar Reformatted of Computed Tomography;

面神经管多层螺旋CT曲面重建的解剖学研究

Research on Key Technology in Reconstruction of Free-Form & Regular Surfaces in Reverse Engineering;

逆向工程中自由曲面与规则曲面重建关键技术研究

Design of Cross Section for Counter-Rotating Twin-Screw Elements and Surface Reconstruction;

双螺杆挤出机端面曲线设计理论的研究与曲面重建

C～2-continuous Surface Reconstruction Based on Triangle Mesh and B-spline Surface Smoothing;

三角网格模型的C～2连续曲面重建与B样条曲面光顺

Research on the Theory, Method and Application of Surface Reconstruction from Scattered Points

散乱点集曲面重建的理论、方法及应用研究

Research on Key Technologies of Sufaces Reconstruction Based on Scattered Point Cloud Data;

基于散乱点云数据的曲面重建关键技术研究

On Theeory of Geometric Continuity in Surface Reconstruction of Reverse Engineering;

反向工程中曲面重建的几何连续性研究