1) triedge-cone
三棱锥面
2) three pyramid method
三棱锥法
1.
This paper presents three pyramid method of forward kinematics for parallel manipulator CRPM(Completely Restrained Position Mecbanism),determines the number of the forward kinematics,gives the analytic form and verifies the proposed method by example based on inverse kinematics.
提出了并联机构CRPM(Completely Restrained Position Mechanisms)正解的三棱锥法,确定了正解的数目,给出了其解析形式,并以反解为已知通过实例验证。
2.
This paper presents three pyramid method of forward kinematics for parallel manipulator CRPM, determines the number of the forward kinematics, gives the analytic form and verifies by example based on inverse kinematics.
本文提出了并联机构 CRPM(Completely Restrained Position Mechanisms)正解的三棱锥法,确定了正解的数目,给出了其解析形式,并以反解为已知通过实例验证。
4) normal triple prism
正三棱锥
1.
in this paper, starting from analyzing the normal triple prism and other polarizing elements, we have studied both theoretically and experimentally the polarization properties of two novel prism resonators used for slab lasers, i.
从对正三棱锥和其它偏振元件的分析出发，对板条固体激光器用两类新型棱镜腔，即共轴复式全内反射棱镜－半反／全反阴阳镜腔和复式全内反射校镜－正三棱锥－阴阳镜折迭腔的偏振特性作了详细的理论和实验研究。
6) pyramidal surface
棱锥曲面
补充资料：锥面
| 锥面 conical surface 动直线经过一定点且保持与定曲线相交所产生的曲面。定点称为锥面的顶点；定曲线称为锥面的准线；动直线称为锥面的直母线。当准线是圆时所得锥面称为圆锥面，特别地，如果顶点在过圆心且与圆所在平面垂直的直线上，所得锥面称为直圆锥面（或正圆锥面）。直圆锥面也可以看成是过定直线g上一定点O且与该定直线保持定角a（锐角）的动直线产生的，定点O是它的顶点，定直线g是它的轴，定锐角a是它的半顶角。一般地，以平面上的椭圆、双曲线和抛物线为准线，平面外一点为顶点的锥面，称为二次锥面，它的标准方程为 
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