参数化的

On the basis of the parametric graphics representation, a new system architecture of product-oriented parametric design has been developed. Based on the research work, a series of software system have been developed, such as Parametric Design Program Generator .

在参数化图形建模的基础上，将产品设计选型系统、产品设计计算、产品设计尺寸推导和图纸输出集成，提出了支持系列化产品变型设计的产品参数化设计体系结构。

A new approach for the surface reconstruction with arbitrary topology by parametric patches fitting is presented, where the surface is divided into patches and each is reconstructed by a parametric surface.

提出了基于平方距离函数的曲面分片参数化重构方法，实现了任意拓扑结构模型表面的参数化重构。

The basic process of three-dimensional parameterized design for the piercer guide board series has been described in this article as well as its necessity and superiority with CAD.

介绍了穿孔机导板系列三维参数化设计的基本过程，及运用计算机进行导板三维参数化设计的必要性和优越性。

By the above four criteria, it is proved that there does not exist a line parameterization which could satisfy all the four criteria at the same time, and that the line parameterization, formulated as c= ax+y, a∈-a0 ,a0, where a0 is an arbitrary positive number, can not only satisfy the uniqueness, boundedness, and recursiveness criteria, but also achieve the best goodness to the uniformness one.

根据上述四条标准，证明了不存在同时满足这四条标准的直线参数化方式t和直线参数化方式c= ax+y， a∈-a0 ，a0不但满足唯一性、有界性和递归性标准，而且可以获得均匀性标准的最优近似。

Given a manifold triangle mesh with zero genus and arbitrary topology, it is globally parameterized over the unit sphere S2 in E3 firstly.

对于给定的具有任意拓扑结构的零亏格三角形网格，算法首先将其在单位球面上进行全局参数化得到一个参数化网格。

In general, most 3D parametric design systems use plane and sphere as basic tools to draw a three-dimensional diagram. In this paper, we introduce a class of new drawing tools: conicoid.

通常大多数三维参数化CAD系统都只用平面和球面作为最基本的作图工具，这在某种程度上限制了三维参数化CAD系统的作图范围。

Parametrical feature library is developed with characterization and parameterization technology, and it can provide user with well defined feature to complete the design of part.

参数化特征库基于特征造型技术和参数化技术创建，用户可以运用这些定义好的库特征元件完善零件的设计，特征库还可以根据需要不断扩充。

Fully use the function of Pro/E parametric technology to achieve the three-dimensional parameterized modeling of involute helical gear with displacement angle.

充分运用Pro/E软件的参数化技术，实现渐开线角变位斜齿轮的三维参数化建模。

The ideas of object-oriented technology and parametric design computation are combined to construct this parametric design system of overhead crane based on object-oriented technology. The corresponding technology are fully used to design and compute partial mechanism of overhead crane. This system makes the devisers design convenient and design period is shortened, and in the meantime work efficiency is improved.

基于面向对象技术的起重机参数化设计系统结合面向对象技术和参数化设计计算的思想，充分利用各相关技术，对桥式起重机部分机构进行设计计算，方便设计人员设计，缩短了设计周期，提高了工作效率。

The main tasks are finished in this paper;(1) Make use of the parametric technique to the 3D parametric model of roller sprockets.

本文完成的主要内容：(1)利用Autodesk Inventor的参数化技术建立了链轮三维参数化模型。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新