Aimed at a kind of rotary cutting machine, the machining process of trihedron cutting is kinematically analyzed, and the moving locus equations of cutting edge are deduced.
对回转车削三面体的过程进行了运动学分析,建立了刀尖相对于工件的运动方程,计算了用该方法加工三面体零件时的各个参数。
No surplus datum planes in three projection planes system;
三基面体系中的基面不存在超越和重复
A figure formed by three planes meeting at a point.
三面体由交在一点的三个平面所形成的图形
ditrigonal scalenohedral class
复三方偏三角面体类
A solid figure having24equal faces, every three of which correspond to one face of an octahedron.
三八面体具有24个面等面、每三个相面对应于八面体的一个面的固体圆形
an octahedron with eight equilateral triangles as faces.
有八个正三角形面的八面体。
a tetrahedron with four equilateral triangular faces.
有四个等边三角形面的四面体。
He used a three-sided piece of glass called a prism.
他使用的是一种三面玻璃体，称为三棱镜。
A point on a polyhedron common to three or more sides.
顶点共有三个或者三个以上边的多面体的顶点
Research and Development on Three-line Structured Light Laser 3D Human Face Scanning System
三光带激光三维人体面部扫描系统的研制
Surface Texture Reconstruction for 3D Object Based on Cylindrical Back-Projection Algorithm
基于柱面反投影算法的三维物体表面纹理重建
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,
prismatic variable message sign system
三面柱体可变信息标志系统
the surface at either extremity of a three-dimensional object.
三维物体的任何一个末端的表面。
plane circular restricted three-body problem
平面圆型限制性三体问题
And the third way is that the Congress is impacted by our media.
第三方面是国会受我们媒体的影响。
the base of a triangle, pyramid, etc
三角形的底边、 角锥体的底面等.
STUDIES ON 3D SPREADING MODEL OF ROCK MASS STRUCTURE
岩体结构面计算机三维扩展模型研究
The specific causes may be grouped under three heads:
引起大战的具体原因有以下三个方面：
3D Shape Mosaic Applied on Fourier Transform Profilometry;
基于FTP的物体三维面形拼接技术研究