三角

Because of many people's fear of the possible penalization of reciprocal links, a lot of webmasters have resorted to triangular linking.

三角联系起来，因为许多人的恐惧可能惩罚的相互联系，有很多网站管理员诉诸三角联系起来。

Give a projecting plane,sign volume of pentahedron for each triangle in mesh,which is constructed by the triangle and it projection in projecting plane,is computed.Volume of the mesh is algebraic sum of all pentahedrons' signed volume.Triangles will be partition into several smaller triangles when necessary.

该方法通过指定投影平面，计算每个三角面片及其在投影平面上的投影所围成的凸五面体的带符号体积（必要时对三角面片进行细分），整个模型的体积为所有凸五面体带符号体积的代数和。

Based on the damage of the planarian from UV-C radiation and the effect of the radiation on the activities of six enzymes, Dugesia japonica should be very sensitive to UV-C radiation and has application prospects and great potential value in UV radiation detection and screening of the anti-ultraviolet radiation protectants.

不论是从紫外线对日本三角涡虫的损伤情况、还是对其六种酶活力的影响来看，日本三角涡虫是一种对紫外线辐射非常敏感的动物，在检测紫外线辐射及筛选抗紫外线辐射防护剂等方面具有潜在价值和应用前景。

First, based on the criterion of Delaunay triangulation for the plane scattered points set, the article proposes the general triangulation for arbitrary scattered points in plane domain.

基于平面区域内散乱点的Delaunay三角剖分准则，本文提出一种适用于平面区域内任意散乱点的通用三角化算法。

The definition of Halton points is introduced and the algorithm complexity is analyzed, then the sampling strategy of triangle plane is introduced, including geometry region partitioning, coordinate mapping between triangle plane and rectangle plane, and computing principle to the coordinates of sampling point. The experiment results compared with Jittered sampling and improved LHS sampling are given.

给出了Halton点的定义，分析了其算法复杂度，在此基础上给出了三角平面的采样策略，包括几何区域的划分、三角平面与矩形平面的坐标映射、采样点坐标计算原理；并将该方法与Jittered采样法、改进的LHS采样法进行了比较。

Simply put, a delta-wing is a triangular wing planform.

简单地说，三角翼就是三角型的翼面。

Ln this paper the effect of the position and planform of the canard wing on the burst process of the leading edge vortices over thedouble delta wing and the aerodynamic characteristics of the fighterconfiguration with the double delta wing are presented Furthermore,optimum fighter with the canard-double delta wing has been given.

本文给出了鸭翼对双三角翼气动特性及涡的发展和破裂过程的影响，进而分析了鸭翼位置、平面形状对全机气动特性影响的机理，并提出了合理的鸭翼双三角翼布局形式。

Basing on the concepts and algorithms, some traditional algorithms, e.g. Delaunay triangulation for planar polygonal domain, constrained Delaunay triangulation for planar points and Delaunay tetrahedralization for spatial points, are improved.

通过上述概念和算法，改进了多边形Delaunay三角剖分、平面散乱点集约束Delaunay三角剖分和空间散乱点集Delaunay四面体剖分等基于生长算法的传统数据生成方法。

While computing radar cross section, surfaces of objects were primarily triangulated, which was called prepositive disposal. The length of the edge of the triangle was generally 0.1 wavelength (in general one wavelength is 3cm).

在雷达散射截面计算中，首先需要将物体的表面进行三角剖分，称为前置处理，三角片单元的边长通常为0.1个波长（一般1个波长取3cm）。

Based on data cloud, which is measured from 3-coordinate measuring machine or so, an algorithm to search lopological structure from 3D unorganized points using Envelopment-box technology is proposed in this thesis. Based on this method, we searching neighbor points of sampling point. We also improve the Max-Min angle criteria to realize local triangulation, and then get the normal of sampling point from the triangulation. Using the normal and neighbor relationship, classification of scattered data points is realized according to the quadric surface.

本文以测量得到的曲面数据点点云为基础，提出了一种基于包围盒的自动寻找三维散乱数据点之间拓扑结构的方法，采用该方法寻找采样点的邻域结点，并对三角剖分中的典型优化准则—最小内角最大准则提出了改进，按照改进后的优化准则实现了采样点的局部三角划分，并进一步求解得到采样点的法向量，依据法向量及邻域拓扑关系在二次曲面的基础上实现了散乱数据曲面重构中的数据点的自动分类。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐