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- curve parametric equation 曲线参数方程
- Point-normal equation and parametric equation of offset lines are used to compute the vertex of offset contour lines. 采用偏置线段的点法方程和参数方程联立求偏置轮廓线顶点;
- It proves that the analytical equation is equivalent to the parametric equation under certain condition. 证明了在一定条件下解析方程与参数方程两种形式的等价性。
- In the form of function of functions this article derives the parametric equation of cylinder helix the lead of which is of a linear change. 用复合函数的形式，导出导程呈线性变化的圆柱螺旋线的参考方程。
- By the solution of the model,a calculating formula of the local dihedral angel of intersecting line and a parametric equation of contacting li. 通过对此数学模型的求解,导出了相交双管相贯线上各点局部二面角的计算公式,给出了相交双管装配接触线的参数方程,并解释了其数学本质。
- In this work, we formulate firstly the parametric equation of the cutting edge, whose trajectory equation relative to the workpiece is then generated through a series of coordinate transformations. 本文应用微分几何理论建立了任意轮廓铣刀切削刃刃线的参数方程，并在此基础上利用空间坐标变换方法建立了任意轮廓铣刀切削刃上任意点与工件相对运动的轨迹方程。
- The curve parameters considered were scope factor A,increase rate of milk yield B and decrease rate C. 所考虑的曲线参数为规模因子a、产奶量上升率b和下降率c；
- An estimation method of the curve parameter, the 50% boiling point of the mixture of the side streams in ASTM distillation, is recommended. 对派基留曲线的主要参数，即各侧线产品混合物的ASTM蒸馏50%25馏出温度，及其计算方法作了介绍。
- The variation scope of standard curve parameter of 12 groups of RIA tests for the eight kinds of pituitary and gonad hormones was basically controlled under 15%. 这8 种垂体性腺激素12 批 R I A 测定的标准曲线参数的变异范围基本控制在15 %25 以内。
- Parametric Equation of Straight Line 直线参数方程的应用
- Based on Dijkstra and A* algorithms,ellipse curve parameter is used to initialize the initial value of the A* heuristic function,and the searching nodes are reduced. 采用二叉堆结构来实现路径计算过程中优先级队列的一系列操作,从而提高了算法的执行效率。
- Parametric equations describing the geometric shape of welding edge at pipe joints are presented.An approach to work out the welding chamfers is illustrated. 用参数方程描述切割相贯曲面的空间几何关系和运动关系，提出解决焊接坡口的方法，并推导出切割过程中各运动分量的求解公式。
- Not only the equation are a basis to get motion parameter equation,but also necessities to develop software of SCM in programs of motion parameter equation. 这些计算式不仅是导出其它运动参数计算式的基础,也是完成各运动程序的单片机软件开发所必须的。
- For different recruitment-fishing types, the methods for estimate of maximum sustainable yield (MSY or Y_S) and maximum sustainable catches (C_S) using recruitment curve parameters are different. 对于不同的补充-捕捞类型,用补充曲线参数估算最大持续渔获数(CS)和最大持续渔获量(MSY或YS)的方法是不同的。
- The varying pitch helixes were constructed on the parameter equation,and were selected as sweep trajectory;the surface of the screw was enveloped on the generating method. 运用傅立叶分析的方法说明了加网和扫描的过程,对扫描半色调印刷品时所产生的龟纹进行了理论的解释,并提出了抑制此类龟纹的方法。
- The algorithm of NURBS interpolation were introduced,it is the key for NURBS curve interploation that the increment of curve parameter was gained according to the feed step in interpolation period. 仿真结果显示,数控机床NURBS插补的轮廓误差与进给速度及给定曲线的曲率半径有关。
- This paper presents an efficient algorithm for the implicitization of parametric curves defined by polynomial parametric equations, which is mainly based on the theory of matrices. 摘要 给出了多项式参数方程定义的参数曲线的有效隐式化算法，此算法主要是基于矩阵理论。
- We have obtained fast generation algorithms for ellipse, parabola, hyperbola, Archimedes spiral, logarithmic spiral, and probability curve arcs with increments and properly-chosen parameter equations. 本文采用增量法,选取适当的参数方程,得到了椭园(包括园)、抛物线、双曲线、阿基米德螺线、对数螺线以及概率曲线弧的快速生成算法。
- ADAPTIVE SELECTION OF WAVELET BASED ON PARAMETRIC EQUATION 基于参数方程的小波基自适应选择
- The falling star described a long curve in the sky. 流星在空中画出了一道长长的弧线。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
