参数化的

This paper presents an intelligent and rapid design system for stairs and plats of container crane based on the combination of the theory of knowledge based engineering with the design of stairs and plats of container crane. 3D parametric graphic software SolidWorks is redeveloped by program language Visual C++ which is object-oriented programming.

应用面向对象的程序设计语言Visual C++对三维参数化图形设计软件SolidWorks进行二次开发，将知识工程的思想与集装箱起重机梯子平台的设计相结合，开发出基于知识工程的集装箱起重机梯子平台智能快速设计系统(Intelligent and Rapid Design System for Stairs and Plats of Container Crane， IRDS-SPCC)。

By the idea of non-parametric estimate and the wide understanding of weight function, we obtain a method of randomizing the restrictive conditions of nonlinear regression model.

对带约束条件的非线性模型问题进行了探讨，利用非参数估计的思想，广义地理解权函数估计中的权，给出了一种方法－&约束条件的随机化方法&。

This paper chooses a plastic bottle shaped by stretch-blowing in two steps and its blowing mold as the main research objects, and has developed the Plastic Bottle and its Blowing Mold Computer Aided Design System, that is PBBMCAD system for short. The system is developed on the plate of Visual C++ 6.0 with Pro/TOOLKIT, which is the developing tool of Pro/ENGINEER.

本文以采用拉伸吹塑中的两步法成型的塑料瓶及其吹塑模具为主要研究对象，利用Visual C++ 6.0和Pro/ENGINEER的二次开发工具Pro/TOOLKIT，开发出了塑料瓶及其吹塑模具的三维参数化CAD设计系统——PBBMCAD系统。

Next, in ADAMS, friction coefficient database is set up, and dialog box for defining joint friction is extended based on analyzing joint friction in mechanical system, and the method of parametric analysis is discussed for analyzing manufacture errors influence on mechanism performance.

然后，建立了受电弓虚拟样机模型，基于该模型主要研究了运动副摩擦引起的升弓轨迹和升弓扭矩的运行误差；在ADAMS环境下建立受电弓的三维参数化模型，讨论了制造误差对受电弓升弓轨迹的影响。

Key approaches in the construct tool including:① knowledge bases integrality checking models,②knowledge base maintenance instructing templets,③ process planning parameter language description method,④ object-oriented manufacturing resource bases operating method.

文章给出了知识库完备性检验的模型，介绍了基于此引导模板的知识库维护方式；提出了一种参数化工艺规程语言描述方法；分析了面向对象的制造资源库的操作方法。

To make the transition curve in the process of gear modeling be more reasonable, the parameterized 3D model of involute cylindrical spur gears with whole profile was made with Pro/Engineer software, based on the study of equations of the dual-arc rack cutter＇ s profile curves and the cut gear＇ s tooth profile curves.

为了使齿轮建模时过渡曲线部分更符合工程实际，在对双圆弧齿条型刀具轮廓曲线方程和齿轮的廊线方程研究的基础上，利用Pro/Engineer软件建立了可变位的渐开线完整齿廊直齿圆柱齿轮的三维参数化模型，并对齿廊曲线连续性进行了分析。

And the surface temperatures simulated in northwestern China are low in the whole year. RegCM2 simulates the characteristic of geographical distribution and seasonal shifts of rain belt in China. But the simulated rainfall is low.

针对上述问题，我们对目前在中国应用较广泛的区域气候模式RegCM2进行了连续5年的模式气候积分，然后根据模式结果全面检验了模式性能，并重点对云—辐射参数化过程中存在问题进行了敏感性试验和改进工作，最后在改进的模式基础上研究了气溶胶的气候效应问题。

Chapter IV presents the relation data model of tool database based on the analysis of available tool data, constructs the database management system of tool. With the family table technology of Pro/E, the three-dimensional parameterized model is built by programming, and the dynamic display of the three-dimensional graphics of tool is realized.

第四章对刀具数据进行了分析，给出了刀具数据库的关系数据模型，建立了刀具的数据库管理系统；利用Pro／E的簇表技术，通过编程对刀具进行三维参数化建模，并实现了刀具的三维图形动态显示。

In this paper,applying theory and practical technology of the expert system in tire tread pattern design are made researches and explorations.

本文对专家系统技术在轮胎花纹设计中的应用理论和实用技术进行了探讨和研究，建立了面向对象的轮胎花纹参数化图元库和花纹设计、选型、载剪、组合专家系统的规则库，并利用面向对象的专家系统骨架研制了轮胎花纹设计专家系统。

Traditionally ellipsoids and hyperboloids are modeled as implicit surfaces or through the use of rational surface schemes. The existing methods for generating spheres or quadrics have shortcoming such as the rational parameterizations for these surfaces are non-uniform, the resulting scheme cannot represent these surfaces in their natural acr-length parameterization and the implementation of the scheme is complex.

长久以来，Subdivision方法对一些看似简单却又在计算机图形学中有着重要作用的曲线曲面的造型非常困难，即使是对简单的圆和球的生成也很困难，已有的一些生成球或二次曲面的Subdivision方法一般都有太复杂、不能自然弧长参数化或者计算量太大等缺点。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。