三角形

By using the method of limited unit , we build up the stiffness matrix of triangular unit of the light gauge sheet of variable thickness and produce the mathematic model for the computation of the stress and displacement at the center of the triangular unit .

应用有限元方法，建立了变厚度薄板三角形单元刚度矩阵，给出了变厚度薄板三角形单元形心上的应力和位移计算的数学模型。

However, misapplication of area formulas has been a considerable problem.

长方形面积问题较易、三角形面积问题较难，尤其对於三角形，边与高的概念容易混淆。

Point data is reorganized by generating index list respectively for geometric coordinates, texture coordinates and normal vectors. Triangular facet data is reorganized by collecting the faces with the same material attribute and generating triangle strip. Texture image data is reorganized in the format of DDS.

采用对几何坐标数据、纹理坐标数据和法线向量数据分别建立索引列表的方式重组点数据，通过集中存储相同材质面片和生成三角形条带来重组三角形面片数据，采用DDS图像压缩格式重组纹理数据。

In 3D as in geometry, each triangle comprises three tops, and our tessellator will use position and normal, perpendicularvector to the surface of our triangle, to interpolate and generate new tops between vertices\'s already existing.

在3D作为几何学，每一个三角形由三个冠军，而我们tessellator将使用状况及正常矢量垂直于地面的三角形，插值生成新tops顶点之间\'s业已存在。

Triangle with one obtuse angle is called obtuse angle triangle.

*有一个角是钝角的三角形叫做钝角三角形。

Pollcn morphology of 11 Heracleum species was examined under LM andSEM. It is shown that pollens of these specics are all of retangular type andequatorial constricted type, with polar views of 3-splitted round, obtuse triangle ortrianglc. Interspecific variations exhibit in pollen size and exine exolamelle.

对独活属11种植物的花粉进行光镜和扫描电镜观察发现，本属花粉为伞形科中比较进化的矩形型和赤道收缩型；极面观3裂圆形、钝三角形、三角形；花粉大小及外壁纹饰在种间存在明显差异。

Sepals triangular to ovate-triangular; leaf blades abaxially densely white tomentose, shallowly obtusely serrate.

萼片三角形到卵形三角形；浓密白色被绒毛的叶片背面，浅钝锯齿。

A percussion instrument consisting of a piece of metal in the shape of a triangle open at one angle.

三角铁一种打击乐器，由一块三角形的金属构成，在三角形的一个角开口

Music A percussion instrument consisting of a piece of metal in the shape of a triangle open at one angle.

三角铁：一种打击乐器，由一块三角形的金属构成，在三角形的一个角开口

A percussion instrument consisting of a piece of metal in the shape of a tri angle open at one angle .

三角铁一种打击乐器，由一块三角形的金属构成，在三角形的一个角开口

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。