正三角形

Triangles are isosceles triangle, equilateral triangle, acute triangle, obtuse triangle, and triangle.

三角形有等腰三角形、正三角形、锐角三角形、钝角三角形和直角三角形。

Is the set of the barycenter of if is a regular triangle, and is the perpendicular bisector of the base if is a nonregular isosceles triangle.

当 为正三角形时，是的重心所成的集合，当为非正三角形的等腰三角形时，是底边的中垂线。

The eigenvalues and eigenfunctions of Laplacian with Dirichlet boundary condition on equilateral triangles are derived from one dimensional representation of D3 group.

由D3群一维表示，得到了正三角形上满足Dirichlet边界条件拉普拉斯算子的本征值和本征函数，并讨论了本征函数的对称性。

And then the complex area coverage problem is transformed into simple equilateral triangle coverage problem.

从而将复杂的区域覆盖问题转化为简单的正三角形区域覆盖问题。

It has unique equilateral triangle cellular construction and its intensity of frame is strong.

特有的正三角形单元结构，骨架强度大

Like Picture 2, a triangle with three same sides is called an equilateral triangle.

象（2）一样，有三条边相等的三角形叫做等边三角形。又叫正三角形。

As a result, they form a third equilateral triangle, about 760,000 kilometers (470,000 miles) on a side.

而 L4 跟 L5 正好也相隔 120 度。它们也形成了第三个正三角形，每边约 760，000 公里长。

Using the theory of area coordinate, arbitrary triangles were transformed into regular triangles. The transverse integration was done on the regular triangle.

利用面积坐标思想，将任意三角形变换为正三角形，使用横向积分方法对正三角形节块进行处理。

The iterative procedure recursive algorithm, sense regular triangle constitutes the Sierpinski gasket, import con...

本程序利用迭代递归算法实现，可以画出正三角形构成的Sierpinski垫片，输入条件为正三角形的中心坐标和边长。

This research dissects two regular triangles and assembles them into a large regular triangle. Using GSP and AutoCAD to draw and analyze geometric shapes, four dissection models and nine dissection methods are constructed. The extreme values under all conditions are also discussed, as are the best and generic dissection models. There is a Three-section type "best dissection model" and a semi "generic dissection model."

本文研究两正三角形，经切割后拼成另一大正三角形；期间以GSP及AutoCAD绘制分析几何图形，并建立了4种分割模式，得到了3段式「最佳分割模式」及准「通用分割模式」，提供这方面问题一个可应用於所有条件之完善解决方案。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。