On the basis of Feature Modeling and 3d Solid Geometry Modeling, with the idea of Object-Oriented Product Design, a 3d Parametric Feature Modeling Method is applied to develop manifold.
采用特征对象化的设计思想，在特征造型和3维实体几何造型的基础上，研究液压集成块的3维参数化设计方法。
On the above algorithm basis, according to theory of data structures, the intersection of any parametric surfaces is found and three-dimensional graphs are given.
在此算法的基础上，利用数据结构的理论，实现了任意参数曲面的求交及拼合，并绘出了相应的三维视图。
The kind of virtual simulation provides basis for the verification of dynamic and static interference, path planning, and the parametric design of the grinder.
文中的虚拟仿真与分析也为机床结构设计中的动静态干涉、轨迹规划的合理性及参数设计的合理性评价提供了依据。
Shape preservation of parametric curves is associated with normalized total positivity of its basis functions.
参数曲线的保形性与生成它的基函数的规范化全正性有关。
On the basis of past production , puts forward the designing project of double horizontal shaft vibrating mixer, and concretely explicates the vibrating and mixing parametric design.
参照以往的成果，提出了双卧轴振动搅拌机的设计方案，并详细阐述了振动参数和搅拌参数的设计。
The relationship between the channel state information (CSI) and the static channel parameters was analyzed to develop a parametric predictor on the basis of auxiliary environmental static parameters.
为了解决在未来无线通信系统中对信道状态信息（CSI）的准确预测问题，分析了CSI与静态环境参数的关系，提出一种基于环境辅助静态参数的参数化信道预测方法。
The level set method was adopted to describing the structural topology and its change, and the compactly supported radial basis function was introduced to getting the parametric level set method.
采用水平集方法描述结构的拓扑及其变化，使用紧支径向基函数对计算区域的水平集进行插值以得到参数化的水平集方法。
On the basis of the parametric mechanism, express the cutaway results in the description for cutaway procedure, then the automatic update of cutaway result while modifying solid model is achieved.
进而利用系统的参数化机制，将剖切结果表达为剖切过程的描述，从而实现了实体模型修改后剖切结果的自动更新。
This paper mainly studied optimal solutions distribution area of one new kind of parametric linear programming and its related theorem on a basis of some usual parametric LP problems.
给出一种确定线性参数规划问题有最优解参数之范围的方法；对一类较一般的参数规划解的稳定给出了若干充分条件。
In chapter 2, the basis of parametric design ideal based on relating-graph is studied.
在第二章中，对基于关联图形的几何建模参数化思想基础作了阐述。
In chapter 2, the basis of parametric design ideal based on relating-graph is studied.
在第二章中，对基于关联图形的几何建模参数化思想基础作了阐述。
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