曲面

Then, the method of polish by digitizing for A-alloy motor wheel cured face was suggested. And a automatic prototyping was designed, it based this method..

在此基础上，结合数字化仿形加工对复杂曲面的加工方法，提出了铝合金汽车轮毂曲面数字化抛光方法，并按此方法，设计了自动抛光样机。

If we implicitly represent the plane curves as the level lines of the surface, the evolution of the plane curves will lead to the evolution of the corresponding surface.

如果把平面曲线隐式地表示成曲面的水平线，由这些平面曲线的演化可得到相应的曲面的演化。

As a new technology, high-speed machining has been constantly explored and has brought revolutionary change to traditional metal-cutting theory.

本文通过进行多因素正交实验，得到了曲面高速铣削表面粗糙度在多个因素共同作用下的变化规律，并建立了多因素共同作用下曲面高速铣削表面粗糙度的预测模型。

This method possesses important theory and practice meaning. In this article, the method and steps of milling rotators tool path was defined on the basis of research and summary on free-surface .

本文在对自由曲面、螺旋曲面的加工方法及步骤进行详细的研究和归纳总结的基础上，确定了采用四自由度无瞬心包络铣削方法求解螺杆压缩机阴阳转子加工刀具空间轨迹的方法和步骤。

Two kinds of free reflectors were designed, and the simulated results showed a uniform illumination near to 90%.

设计了两种自由曲面反射器，并用软件对得到的曲面进行了照明模拟，模拟得到的照明均匀性接近90％。

According to the features of the radomes inner surface, the measuring way and the data .processing method are studied in the dissertation.

针对天线罩内廓面的特点，研究了内廓面的测量方法以及根据自由曲面离散型值点数据和曲面上要求的各点去除量数据，自动生成数控加工代码的数据处理方法。

The second, the thesis introduce the principle of NURBS curve and evaluating index of the curve quality.

文中阐述了CAD技术NURBS自由曲线曲面造型的原理和曲线曲面光顺性评价指标，并对其理论基础进行了系统的论述。

The research of the generation of FG is made by the derivation of the equations of FG tooth, contact lines on tooth in processing, plane of action and fillet surface, and by the visualization of contact lines, FG tooth surface and fillet surface.

在面齿轮齿面生成的研究中，推导了面齿轮的齿面方程、加工中的齿面接触线方程、啮合面方程和过渡曲面方程；对齿面接触线、面齿轮的齿面和过渡曲面进行了可视化。

Based on the geometry constraint and dimensiondriving technique, a 3-UPU parallel simulation mechanism is created. Then a 3D free surface and a guiding plane of tool path are constituted, with the 3-UPU parallel machine tool combined, a novel 3-UPU simulation parallel machine tool for machining a 3D free surface is created.

通过几何约束和尺寸驱动技术，先建立3-UPU并联模拟机构，再构造任意3D自由曲面和刀具轨迹的引导平面，与3-UPU模拟并联机构合成，得到用于加工任意3D自由曲面的模拟并联机床。

Based on the geometry constraint and dimension-driving technique,a 3-UPU parallel simulation mechanism is created.Then a 3D free surface and a guiding plane of tool path are constituted,with the 3-UPU parallel machine tool combined,a novel 3-UPU simulation parallel machine tool for machining a 3D free surface is created.

通过几何约束和尺寸驱动技术，先建立3-UPU并联模拟机构，再构造任意3D自由曲面和刀具轨迹的引导平面，与3-UPU模拟并联机构合成，得到用于加工任意3D自由曲面的模拟并联机床。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。