查询词典 Pascal's triangle

For example, if you draw a triangle on a flat piece of paper the sum of its angles is equal to two right angles (as you know from elementary geometry ).

比如说，如果你在一张平坦的纸张上画一个三角形，它所有内角之和等于两个直角之和（如你从初等几何中所知的）。

You can say that the proof uses nothing beyond elementary matrix theory, repeated use of the triangle inequality, and the pigeonhole principle.

你可以简要地说其实证明就是初等矩阵理论，三角不等式和鸽笼原理的运用。

Median bracts spinulose and with a papillose triangle at apex; leaf blade emarginate to obtuse or acuminate at apex.

中间的苞片具微刺并且具一个具小乳突的三角形在先端；叶片微缺的到钝或渐尖在先端。

The epicanthus of 39 patients was corrected by skin-muscle double-layer plasty-triangle skin resection and orbicular muscle resection.

均采用临蹼处三角形皮肤切除联合眦部眼轮匝肌切除的皮肤—肌肉双层成形术矫正内眦赘皮。

As the equation of the curve determined by companion centers shows, our main result is that the set of all companion centers of a nonisosceles triangle is the unique equilateral hyperbola, called the hyperbola of , passing through the vertices ,, and the barycenter of .

透过伴心轨迹方程式我们得到主要结果如下：非等腰三角形的伴心所成的集合是一个通过三顶点、、及重心唯一的等轴双曲线，称为的双曲线。

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。

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

一个等边三角形是由关联的60度来组成的。

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

如果等边三角形的一边是三尺长，那么其他两边也一定是三尺长。

In the figure, ABC is an equilateral triangle while

图中，ABC 是等边三角形，而BCDE 是正方形。

The birth of a True Equilateral Triangle from Isosceles parents is the subject of rejoicing in our country for many furlongs around.

一个真正的等边三角形的等腰父母的出生是个普天同庆的日子许多荒山，我国各地的主题。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。