unique feature

unique feature的基本解释

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特色, 特点

与unique feature相关的网络例句 [注：此内容来源于网络，仅供参考]

The article starts with the basic conception of urban feature, makes contrast analysis with relevant fields of urban landscape, urban ecology, urban geography, urban aesthesis, clarifies the study subject and field of urban feature, relates the study with the specialty of urban feature study contents, and based on the probe of urban feature's characteristics of obscurity, certainty and duality of culture and form, puts forward with systematic analysis the conceptions of urban feature hiding factor, urban feature surfacing factor, urban feature core, urban feature mark, space structure core and times core, and sets up urban feature database.

论文首先从城市风貌的基本概念出发，通过与城市景观、城市生态、城市地理、城市美学等相关学科的对比分析，明确了城市风貌研究的对象和范畴，结合城市风貌研究内容的特殊性，在深入剖析了城市风貌的模糊性、确定性、文态与形态双重性等特征之后，运用系统分析的观点，提出了城市风貌潜态因子、城市风貌显态因子、城市风貌核、城市风貌符号、空间结构核、时间文态核等概念，在系统分析的基础上，建立了城市风貌信息数据库。

First it concludes elementary methods for product modeling such as feature recognition, feature-based design and feature mapping. Then it probes into the mechanism of constraint-based feature parametric modeling, representation of feature parametric model and methods for solving constraint in details. At the end it proposes a feature-based modeling system that makes good use of resources and synthesizes many feature modeling methods, and analyses the development of prototype system oriented to actual application.

首先全面归纳了基本的基于特征的产品建模方法，包括特征识别、基于特征设计和特征映射方法，然后对基于约束的特征参数化建模、特征参数化模型的表达和定义方法以及约束求解方法进行了深入研究，最后提出了一个充分利用现有资源，特征识别、基于特征设计和特征映射共用的特征建模系统，并探讨了面向实际应用的原型系统的开发技术。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

与unique feature相关的网络解释 [注：此内容来源于网络，仅供参考]

Extract：抽取

0、关联复制 抽取(Extract) 引用(Instance Feature)11、特征编辑 参数(Edit Feature Parameters) 定位(Edit Positioning) 移动(Move Feature) 重排序(Reorder Feature) 删除(Delete Feature) 抑制(Suppress Feature) 取消抑制(Unsuppress Feature) 去除参数(Remove Parameters) 实体密度(Density)第二部分课程内容本部分学习

TRIM：修整

e)9、裁剪 修整(Trim) 分割(Split)10、关联复制 抽取(Extract) 引用(Instance Feature)11、特征编辑 参数(Edit Feature Parameters) 定位(Edit Positioning) 移动(Move Feature) 重排序(Reorder Feature) 删除(Delete Feature) 抑制(Suppress Feature) 取消抑制(Unsuppress Feature) 去除参数(Remove Parameters) 实体密度(

chromatically unique graph：色唯一图

个性特征:unique feature | 色唯一图:chromatically unique graph | 独特艺术:unique artistry