It shows that the curvature and the deflection are the invariable of the movement,especially for the discussion of the fundamental three-vector form and it also lays a fundation for the study on the theory of surface.
着重证明了曲率和挠率为运动不变量 ,尤其对基本三棱形的讨论 ,为以后的曲面论打下了基
A study on NC mathematical model of the internal and external three prism milling
三棱形内外圆磨削数控数学模型研究
Geometry and Dynamics Characteristics Analysis of Polygon Section Axis
三棱形截面轴的几何特性和力学特性分析
Design and Implement of the Internal and External Three Prism Milling CNC System Based on Trio Movement Control Platform;
基于Trio运动控制平台的三棱形内外圆磨削系统设计与实现
a prism whose bases are triangles.
底面是三角形的棱柱。
The Application of “Four Centers” of a Triangle in Triangular Cone;
三角形的“四心”在三棱锥中的应用
3D numerical simulation of free surface flow on tri-prism grids
三棱柱形网格下自由表面流的三维数值模拟
prismatic compass
棱镜罗经，三棱镜罗盘仪
A 3-D pyramid bar chart uses pyramid data markers to lend a dramatic effect to a 3-D bar chart.
三维条形棱锥图使用棱锥形数据标记使三维条形图产生生动的效果。
Triangular Pyramid Model of Voluntary Disclosure of Listed Companies' Intangible Assets
上市公司无形资产信息自愿披露的三棱锥模型
an oblique a regular, a right, a triangular ] prism
斜正、直、三角]棱柱
an oblique [ a regular, a right, a triangular ] prism
斜[正、直、三角]棱柱
longitudinal coefficient
船体)棱形系数船体棱)棱形系数圆柱形系数
The edge finite element interpolation function of 1-forms for prism is derived.
就三梭柱单元导出了棱边有限元法的1－形式线性插值基函数。
A pyramid column chart uses pyramid data markers in a column chart.
柱形棱锥图在柱形图中使用棱锥形数据标记。
A prism disperses light.
三棱镜可使光色散。
a prism whose bases are quadrangles.
底面是四面形的棱柱。
Three such arrangements come to mind: a planar hexagon, similar to the benzene ring, and two solid polyhedra, the trigonal prism and the octahedron.
故而,有三种排列方式：平面六边形,类似苯环；两个立体多面体：三棱柱和八面体,
A solid figure with a polygonal base and triangular faces that meet at a common point.
棱锥多面形的底痤和三角形的侧面在一个共同点处相接的固体的轮廓