椭圆弧 meaning in English
elliptical arc
Examples
- Appends an elliptical arc to the current figure
向当前图形追加一段椭圆弧。 - Taking practical situation of this project and much engineering experience into account , the scheme with axle golden section elliptical arc surface is proposed through comparing nine optimization schemes with model test
结合工程实际和以往经验，比较了9种进水口曲线型式的试验结果，确定了长短轴黄金分割比的椭圆弧面的方案。 - The off - line program system based on cad / cam for dispensing robot is designed on the computer . in the module of trajectory planning , preliminary discussion is done about the shortest loop path and an algorithm of solving this problem is provided ; in the module of back procedure , dda ( digital differential analyzer ) is adopted in line , circle and ellipse interpolation . at last the protocol transferring program data to robot from off - line system is analyzed
在离线编程的系统的设计中,实现了cad的建模、点胶轨迹的程序示教、工艺参数编辑、轨迹规划、后置处理等功能,并在规划模块中针对平面内不规则排列点进行点胶的轨迹规划进行了初步探讨,采用图论的方法,给出满足实际要求且算法复杂度较小的最短闭合回路的程序算法;在离线编程系统的后置处理模块中,介绍了直线、圆弧、椭圆弧的dda插补方法以及脉冲分配不均匀的改进方法;最后对通信协议的制定进行了分析。 - They not only inherit the advantages of bezier curves and b - spline curves , also can be used to represent straight lines precisely and some remarkable transcendental curves precisely , such as circular arc , ellipse , cardioids and twisted pair line etc . especially , the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由于它们还具有三角函数的优点，故既可以精确表示直线段、二次多项式曲线段又可以精确表示圆弧、椭圆弧等二次曲线以及心脏线、双纽线等超越曲线。特别地， 3次均匀t - b样条曲线曲面比同阶均匀b样条( c - b样条)曲线曲面具有更高的光滑度。 - A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide . a kind of expression of approximate solution for domain mode of the new waveguide , including symmetric , unsymmetric arc , parabolic arch , hyperbolic arch , elliptic arch , etc . , is constructed by using boundary condition of mental waveguide , variational method and boundary element method . by using the equivalence principle , an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived , and the result is shown . although this solution is approximate , it can solve the problem in designing the slotted antenna of such conformal waveguide
把矩形波导一个宽面外突成均匀曲面构成的新波导统称为共形波导.利用金属波导边界条件、变分法、边界元素法构造这种新波导中主模场的一种近似解表达式，包括曲面横截线为对称、非对称圆弧，抛物线弧，双曲线弧，椭圆弧等.然后根据等效原理，推导非对称圆弧矩形波导曲面上窄的纵向半波长缝隙的等效谐振电导的近似计算公式，给出计算曲线.这种解虽然是近似的，但却能解决这类共形波导缝隙天线的工程设计