三角形

DA triangle with one 90° angle is a right triangle .

一个角为90°的三角形是直角三角形。

Triangle with one right angle is called right-angled triangle.

*有一个角是直角的三角形叫做直角三角形。

This is a rotation of the triangle procedure can be carried out by rotating triangle.

这是个关于三角形旋转的程序，可以进行三角形的旋转。

Each cube corner element includes a base triangle bonded by one groove from each of the three intersecting groove sets, the base triangle being scalene.

各立体角元件包括由三组相交槽中的每一组槽中的一个槽构成的底部三角形，该底部三角形是不等边的。

With respect to the 3D modeling, the Delaunay Triangulation constructing method of 2D scattered data set is discussed firstly. The triangulation method of 3D surface data set of 3DLCS is analyzed by basing on the DT constructing problem of 2D scattered data set.

在三维构型方面，本文首先论述了二维散乱数据点集的Delaunay三角形化构造方法，然后以此为基础分析了3DLCS中的三维表面数据集的三角形化方法。

Prepare some triangles of paper and cards. Hand out the triangles made with the sketchpad to student.

准备三角形的纸片和卡片，将用几何画板做得三角形传给学生。

The sum of the interior angles of a triangle with paper, card , sketchpad and so on in groups.

学生分组，用事先准备好的三角形的纸片、卡片、几何画板软件进行探究：三角形的内角和。

Spherical triangle : the sphere of the three point arc banded together with three large, surrounded by the graph is called spherical triangle .

球面三角形：把球面上的三个点用三个大圆弧联结起来，所围成的图形叫做球面三角形。

Spherical approximation triangle demonstration tenets : first approximation using regular t...

三角形逼近球体演示原理：先用正三角形逼近绘出20面体，然后递归分割，把每个面分割为4个三角形，此以来逼近球体。

Spherical approximation triangle demonstration tenets : first approximation using regular tria...

三角形逼近球体演示原理：先用正三角形逼近绘出20面体，然后递归分割，把每个面分割为4个三角形，此以来逼近球体。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。