symmetry axis meaning in Chinese
对称轴
Examples
- On the assumption of ignoring the distortion of thickness , this paper determines the rough shape by the geometric modeling method of equal area developing using mixed mesh cell of triangle and quadrangle for the first time , presents the equal area developing arithmetic of quadrangle - triangle . on the virtual geometric symmetry axis , we puts forward the method of determining the developed coordinate of the point on the base band in the development of using regular quadrangle cell , determines the developed shape of internal structure in plane utilizing point - to - point mapping theory . furthermore , we realize the approximate developing of undeveloped - irregular boundary surface using a few triangle cells
本文结合型号研制中小曲率机翼整体壁板类零件坯料展开课题，基于板料厚向变形忽略不计的先验假设，首创混合四边形-三角形网格等面积展开的几何模拟法确定壁板类零件毛坯外形，给出了混合四边形-三角形网格等面积展开算法；提出了虚拟分割线的概念，采用虚拟几何对称轴，给出了规整四边形单元展开基带上结点的计算方法；采用映射原理和求交算法确定了壁板内部结构信息的展开定位。 - Then according to the mrf machine ’ s structure and motion mode , the function and assignment of mrf machine cnc system are analyzed . the design and implementation of cnc system are researched , and a set of pc - based open architecture cnc system is developed . a trace interpolated algorithm of mrf machine cnc system is advanced according to the characteristic of mrf . the symmetry axis curve surface , such as aspheric surface , which is fit for optics general equation can be machined with mrf machine by using this interpolated algorithm
然后根据磁流变抛光机床的结构和运动方式,从工程实际应用出发,分析了磁流变抛光机床数控系统的功能和任务,研制了一套基于pc的具有开放式体系结构的数控系统,同时针对磁流变抛光的特点,提出了磁流变抛光数控系统的轨迹控制插补算法,运用该算法可对非球面等适用于光学通用方程表示的回转对称曲面进行磁流变抛光加工。