| 1. | Calculating the degree of dihedral angel by the formula of trihedral angel
用三面角公式求二面角的度数 |
| 2. | Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 17 : examinations and measurements - endface angle of angle - polished ferrules
光纤互联装置和无源部件.基本试验和测量步骤.第3 - 17部分:检查和测量.抛光角套圈的端面角 |
| 3. | Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 17 : examinations and measurements - endface angle of angle - polished ferrules
光纤互连和无源元件.基本试验和测量程序.第3 - 17部分:检查和测量.角部抛光的套圈的端面角 |
| 4. | Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 37 : examinations and measurements - endface angle of angle - polished optical fibres
纤维光学互连器件和无源元件.基本试验和测量规程.第3 - 37部分:检查和测量.磨角光学纤维的端面角 |
| 5. | This paper applies geometric vector concept to derive the relations between double plane angle ( angle between two planes ) and planar angle when three planes intersects each other , and obtains eight formulae for working out the related angles and expanded dimensions on driver ' s cabs of material handling equipment
摘要动用几何中向量的概念，推导出3个平面两两相交时，其二面角与平面角的关系，得出8个计算公式，可解决起重运输机械驾驶室的有关角度和展开尺寸的计算。 |
| 6. | The model of influence upon the parallel between servo optic axis from the angle error of installation plans presented . whereby the theoretic analysis is carried out and the analyzing results are obtained . the method of obtaining the angle error through measuring the installation plans with three - coordinates measuring device and fitting the measurement data is put forward and pave a road for lessening the influence
对安装面角误差影响随动光轴平行性的问题也建立了数学模型，以此为出发点进行理论分析，给出了分析结果；提出用三坐标测量机测量安装面，通过拟合得到安装面的角误差；从而为减小这一误差源对随动光轴平行性的影响铺平了道路。 |
| 7. | The effective reflection area of a cubic corner reflector is defined , it is testified for the cubic corner reflector that the ray reflect from this prism is not parallel with the ray incident on the corner of undersurface of this prism , the effective reflection area is calculated in the case of the ray incident on the undersurface of this prism vertically , the acreage of the effective reflection area is two thirds as that of the undersurface of this prism
定义了立方角锥棱镜的有效反射区，证明了立方角锥棱镜底面角部区域(即非有效反射区)入射光与出射光不平行，并且在入射光垂直棱镜底面入射情况下计算得有效反射区的面积为底面的三分之二。 |
| 8. | The main difficulty along with approximating to object ' s surface with multi - nurbs patches is that one must deal with more control points , especially the control points around the jv - patch corner because of the intertwining of the geometric continuous constraints along the boundaries converging on the corner
用nurbs曲面分片逼近物体表面带来的问题就是要处理大量的控制顶点，特别是n面角附近的控制顶点更需要特别处理，因为曲面片之间的几何连续约束在角点处互相缠结。 |
