查询词典 geometric

The result can be widely applied to many aspects of product design systems,such as parametric design by geometric reason-ing,decomposition of complex design tasks and dependency analysis of design parameters.

该方法在产品设计中有广泛的应用，利用这个模型和算法可较好地解决参数化设计中的几何推理问题，还可用作概念设计的工具，用于完成复杂系统设计任务的划分及定序、设计变量之间相互依赖关系分析等工作。

Surface reconstruction, aiming to achieve the mathematical expression of geometric model for complex free-form surface from the scattered measured data, is a key technique of Reverse Engineering.

曲面重构，是指从散乱数据点集重构出物体的几何模型，并获得该几何模型的数学表达式，它是逆向工程研究中的关键内容。

People's performance was soon restored by picture of trees, fields and hills, but not by streets, industrial units or even complex geometric patterns.

被试实验中的表现在观看树木、田地、小山后能够很快得到恢复，而观看街道、工业区、甚至几何图形都不能达到这样的效果。

ABSTRACT In recent years, the manufacturing industry has been experiencing strong demands for shortening product development lead time and strengthening product competence. In order to satisfy customer's needs and survive in the competitive market, Reverse Engineering has emerged as a crucial tool to perform accurate and rapid geometric reconstruction for complex shapes in product development.

近年来，机械制造业正面临着要求缩短产品开发周期和增强产品竞争力的考验，为满足用户的要求及自身市场生存的需要，逆工程技术就成为完成复杂物体精确测量和快速复制的一个重要手段。

The cruxes in developing a CAD system of crankshaft forgings are geometric modeling of complex shapes and the design of finishing die cavity and these are solved in this dissertation.

为了满足实际生产中的迫切需求，选择了开发曲轴模锻CAD系统这一对国民经济建设有着十分积极意义的研究课题。

The high efficiency of universal processors and their comparatively large number make even possible for inexpensive chips to show a good resultin all synthetic tests, especially in the geometric and complex pixel.

高效率的通用处理器，以及其相对一大批做出甚至有可能廉价芯片展现出良好的结果，在所有的综合考验，尤其是在几何和复杂的象素。

This paper presents a model and algorithms of causal qualitative reasoning based on integer programming. The result can be widely applied to many aspects of product design systems,such as parametric design by geometric reasoning,decornposition of complex design tasks and dependency analysis of design parameters.

该方法在产品设计中有广泛的应用，利用这个模型和算法可以较好地解决参数化设计中的几何推理问题，还可以用作概念设计的工具，用于完成复杂系统设计任务的划分以及定序、设计变量之间相互依赖关系分析等工作。

This paper presents a layered polynomial texture to represent grass based on its complex geometric structure and diffuses material.

根据草的几何结构复杂性和材质的漫反射特性，提出层次多项式纹理(layered polynomial texture，简称LPT)来表示草，可以高效真实地实现这个目标。

The Factory provides to the customers and process for the customer with different formed section steels,especially the steel with complex geometric sections.

本厂同时还为客户提供和加工各种冷弯型钢，特别是几何断面复杂的冷弯型钢。

A complex 3-D geometric model of the cylinder block was established by using the parametrized modeling technology, and then a 3-D finite element model of the block was constructed.

运用参数化特征建模技术建立了气缸体优化设计前后的三维几何模型。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。