查询词典 engineering

The title and bill of material in engineering drawings are important data source for product data integrated management. In order to reuse the CAD data, the paper presents an effective method for extracting part information from existing engineering drawings. Through analyzing the format of title and bill of material, several shape-position characteristics of tables are summed up from the view of macro-layout and microstructure. A new method to automatically extracting drawing information based on cell-grid and feature-point is proposed along with its algorithm principle and implementation steps. A software package based on the method mentioned above is developed and used in practice.

1引言工程图是工程设计的主要成果和制造加工的主要依据，CAD软件的广泛应用使得传统上对于纸质图纸的管理模式转变为对大量电子文件的管理模式·由于文件系统在实际应用中不能适应复杂大规模的管理模式，已经出现了各种各样的图档管理系统[1]·工程图中包含的零件信息在表现形式上体现纸格式的标准化为批量提取数据提供了可能性·作为计算机处理的对象，图纸信息自动识别成为数据管理和系统集成的一项关键技术·当前CAD管理系统所处理的数据对象比较复杂，面临由不同企业使用不同的绘图软件生成的图纸，其中的标题栏和明细栏或者由软件自动生

These investigations revealed that even in such technical lines as engineering, about 15 percent of one's financial success is due to one's technical knowledge and about 85 percent is due to skill in human engineering---to personality and the ability to lead people.

一个人总要走陌生的路，看陌生的风景，听陌生的歌，然后在某个不经意的瞬间，你会发现，原本是费尽心机想要忘记的事情真的就那么忘记了。

In some cities, and even the house top-knot as a condition of real estate pre-sale, such as Shanghai, there are provisions of the following seven of the housing project should be complete basic engineering and construction to the main cap structure; eight or more of the housing project housing project should be complete basic engineering and construction to more than two thirds of the main structure.

在一些城市，甚至在众议院顶端结的一个条件，房地产预售，如上海，有规定的下列七项住房项目应当完成基础工程和建设的主要帽结构； 8个或更多（包括8 ）的住房项目住房项目应当完成基础工程和建筑，以三分之二以上的主要结构（不少于7）。

With PET/montmorillonite as matrix resin,flame retardant PET/montmorillonite engineering plastics reinforced by glass fiber were prepared by the addition of glass fiber,flame retardant agent and toughener,and the prepared engineering plastics could be molded at low moulding temperature.

PET以优异的综合性能和低廉的价格在纤维、薄膜方面获得了广泛应用，但是由于PET结晶速率低、产品收缩率大、模塑加工温度高、抗冲击性能差等缺点，限制了它在工程塑料方面的应用。

In this paper, the views and approaches of the system engineering is discussed in the application of the system engineering to TQC.

文中讨论了系统工程的观点和方法在全面质量管理中的应用。

Through to old construction space inspection and analysis,it has pointed out the old construction in the regional function,as well as with uses again under the new engineering factor transformation,and proposes under the new technical spatial transformation way,in order to offer a reference for regional space reconstruction desigh engineering of old buildings.

通过对老建筑空间的考察与分析，指出了老建筑在地域性中的作用，以及在新技术条件下的改造与再利用，并提出在新技术下的空间改造方式，可供老建筑地域性空间改造设计工程参考。

The time translation operator is defined and time characteristics of concurrent engineering is analyzed. Two axioms are proposed for the guiding of globe optimization of concurrent engineering process without exact time information.

本文中提出了环节柔性的概念及对设计变更和反复进行了时间／成本代价分析，为在并行工程实施中尽量避免涉及后期工程环节的设计变更和尽可能减少设计反复，奠定了定量分析的基础。

In chapter 4, basing theories and methods of scientific visualization, and artificial neural network BP algorithm, we integrate the Visual C++, OpenGL graphics library and Excel VBA technique to develop the program of artificial neural network and to make the BP algorithm visually, this program works can be divided into four parts: Using C language to develop program about BP algorithm; Using Visual C++, develop the GUI Interface, make input parameter visually; Using OpenGL graphic technique to display the training sample point in three dimension; at last using Excel DDE technique display the error graphic tables in Excel system In chapter 5, on the view of engineering application, we establish new method of surface reconstruction basing artificial neural network, develop interface program between module and commercial CAD/CAM system, meantime deeply discuss some key problems, for example, setting up the base plane, using the API technique, cutting and editing surface boundary, and also discuss the more compliant problem: how to intersect surface, at end we finish the work of translation from our surface reconstruction module to commercial CAD/CAM system, then make reverse engineering system basing artificial neural network more useful.

第四章基于科学计算可视化理论，依据人工神经网络BP算法理论模型，综合Visual C++，OpenGL图形库以及Excel VBA等多项软件开发技术，编制了人工神经网络程序，实现了BP算法的可视化映射。具体工作分为四部分：利用C语言实现人工神经网络BP算法；利用VisualC++的GUI技术开发图形用户界面，实现参数设置可视化；利用OpenGL图形技术进行三维映射，显示学习样本及训练样本点；利用微软电子表格DDE动态数据交换技术，在Excel上动态显示学习误差曲线图。第五章从工程应用的角度出发，提出了一种新的基于人工神经网络算法的曲面裁剪重构方法，完成了曲面重建模块与通用CAD/CAM系统的接口设计工作，对其中的若干关键问题进行了深入讨论，例如基平面设定、API技术的应用、边界裁剪等问题，同时，对曲面计算中较为困难的曲面相交问题也进行的专门探讨，最终完成了曲面重建模块向CAD/CAM系统的数据传输工作，使人工神经网络逆向工程系统趋向实用。

"The trialism of science,technology and engineering" puts forward,provides the logic premise and foundation for establishing the philosophy of engineering.

科学、技术、工程三元论的提出，突破了传统的科学、技术二元论，为工程哲学的建立奠定了逻辑前提和基础。

Duality of Systems Science and Systems EngineeringBased on the trialism of science,technology and engineering,the demarcation between Systems Science and Systems Engineering is presented.

目前，我国处于经济建设快速发展时期，正在进行史无前例、规模空前的工程建设，而系统工程并未随着工程建设大潮而蓬勃发展，未能完全满足工程时代的需要。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。