等边三角形

它的轮廓大致形成一个等边三角形。

Its outline roughly forms an equilateral triangle .

它通过N原子及三个H原子组成的等边三角形的中心。

It passes through the N atom and through the center of the equilateral triangle .

求解单位等边三角形PACKING问题的最小损伤法

How to Find out Minimum Damage to Unit Equilateral Triangle Packing

设想ABC是一个等边三角形。

Let ABC be a triangle whose sides are of equal length .

也许我会加入“误差因素”，和delta一起来确定是等腰三角形还是等边三角形。

Perhaps I will want to add a " fuzz factor " with deltas for determining whether I have an isosceles or equilateral triangle , respectively .

当实现对等边三角形和等腰三角形的测试时，我认识到我只用了delta值来用于直角三角形的计算。

As I implemented the tests for equilateral and isosceles triangles , I realized that I was using only the delta value for calculations in right triangles .

计算表明，对于空气柱等边三角形二维光子晶体，当介电常数比为13：1时，最佳填充比为0.78，最大带宽是0.094（Δωa/2πc）；

The results of calculation show that the optimal filling factor is 0.78 for equilateral triangular two-dimension photonic crystal when dielectric constant ratio is 13:1 , and the widest band gap is 0.094 (Δω a / 2 π c ) .

本文介绍了一种新的算法&最小损伤法，对具有NP难的单位等边三角形PACKING问题进行了试探性研究，希望由此得到一些研究NP难问题的启发性方法。

The article introduces a new algorithm_least_Destroying Algorithm and makes a probing research about a NP-hard problem_Unit-Equilateral-Triangle-Packing - Problem . we hope to get some heuristic methods for solving NP-hard problems .

Delaunay三角化是十分理想的散乱数据的可视化工具，它可以根据一组随机分布的离散点数据生成唯一的近似等边三角形。

Delaunay triangulation is a useful tool for the visualization for random distributed points . Unique approximate-equilateral triangles can be obtained from a set of random distributed points by Delaunay triangulation .

采用时域有限差分和Padé近似计算了等边三角形、正方形和平行四边形微谐振腔的模式频率和品质因子。

The mode frequencies and the quality factors for the equilateral triangular resonator ( ETR ), the square resonator ( SR ) and the rhombus resonator ( RR ) are numerically calculated by the finite difference time domain technique and the Pad é approximation .

也许它们之中一个是“等边三角形”，而另一个是“等角三角形”；

Perhaps one of them says'equilateral triangle'and the other says'equiangular triangle ' ;

一个等边三角形是由关联的60度来组成的。

An equilateral triangle would be formed with its associated 60 degree angle .

哪个是等边三角形？

Which of the following is an equilateral triangle ?

等边三角形不能分成有限多个不全等的等边三角形。

An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles .

绕流等边三角形排列的三圆柱

The Fluid Flow Around Three Equidistant Circular Cylinders

ph.1.【数】不等边三角形，不规则三角形不等边角钢用于输电杆塔的试验研究

Scalene triangle Study and Test on Application of Non-equilateral Angle Steel for Transmission Towers

来自于正六角形的两个完全等边三角形组成的正多边形。

A regular polygon formed by completing two equilateral triangles from a regular hexagon .

基于等边三角形麦克风阵列的语音增强

Speech enhancement using a small trigonal microphone array

有四个等边三角形面的四面体。

A tetrahedron with four equilateral triangular faces .

比例尺放大法是利用等边三角形等比放大原理，对指纹进行等比放大；

Scale magnifying method is to magnify the prints with the principle of equilateral proportion .

边缘简支等边三角形板平衡问题的影响函数

Note on the influence function for the deflection of an equilateral triangular plate simply supported at the edges

吉布斯提出用等边三角形作图，这已成为三元体系的标准方法。

Gibbs suggested the use of an equilateral triangle plot , and this has become standard for ternary systems .

正多面体顶点二染色时同色等边三角形个数的讨论

The number of Equilateral triangles with the same colour in a Regular polyhedron with the vertices coloured with two colours

经外眼角和鼻尖连成的虚线，正好构成一个等边三角形。

A line drawn between the outside corners of the eyes and to the nose will create a near equilateral triangle .

成等边三角形的三角墙各面都是正多边形且多面体的角都相等的立体。

Triangular pediment any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent .

如果等边三角形的一边是三英尺长，那么其他两边也一定是三英尺长。

If one side of an equilateral triangle measures three feet , the other two must also be three feet each .

像是镌刻在大理石上的等边三角形。三角形中有一个内接圆；圆和三角形都被竖直等分。

Equilateral triangle that appears to be carved into marble . The triangle contains a circle ; both are bisected vertically .

以成像系统建模为基础，模拟生成不同尺寸、不同辐射温差的等边三角形方位靶标图像；

Based on staring imaging system modeling , the triangle pattern simulation images with different differential temperatures and different sizes are generated .

随后将获得三条粗略定义的角边，用于定义指向图像中心的近似的等边三角形。

Three roughly defined corner edges are then acquired that define an approximately equilateral triangle pointed at the center of the image .

在船身吃水线下两米半的地方，露出一个很规则的等边三角形的缺口。

Two and a half meters below its waterline , there gaped a symmetrical gash in the shape of an isosceles triangle .