查询词典 geometric drawing

It probes into the reform and innovation in Western pen drawing based on absorbing excellent tradition of Chinese line art,which is significant in the language of pen drawing and enhancing the development of pen drawing art.

文章探讨了中国书画线条在现代钢笔画中的具体应用方式与手法，研究了钢笔线条在吸收中国书画优良传统的基础上，对西洋钢笔画所进行的改革与创新，它对丰富钢笔画绘画语言、推动钢笔画艺术的发展具有特殊的意义。

In recent years, based on the aesthetic conception of modern people, and the strong Chinese culture, the design and production of Feather Drawing has made a wonderful breakthrough especially with the embossment feather scenic drawing which is elegant and life-like. Feather Drawing gives strong impressions and real visionary effects in addition to its aesthetic and preservation values.

近年来，结合现代人的审美观，依托深厚的文化底蕴和文化内涵，羽毛画的设计和制作工艺有了可喜的突破，主要表现在浮雕式的羽毛风景画，不但典雅高贵，且给人以身临其境之感，深具视觉冲击力而令人赏心悦目，极具观赏价值和收藏价值。

Through analysing the structural feature and pressing technical of LJ465Q-1A petrol motor front encloser,these design emphasize introduce the pressing process planning and punch flush trim die , hole flanging moding design of petrol motor front encloser, approach how to avoid flaw , ascertain rational pressing process and dying structure ,finally in terms of pressing process drawing ,achive the punch shaving die ,hole flanging structure design and assembly drawing , major parts drawing of the part .

本设计通过对LJ465Q-1A汽油发动机前罩壳的结构特点和冲压工艺分析，着重介绍了该零件的冲压工艺过程设计及冲孔修边模、翻孔模的设计要点，探讨了避免缺陷产生的方法，确定了合理的冲压工艺过程和模具结构，并以冲压工艺过程图为依据完成了该零件冲孔切边模与翻孔模的结构设计和装配图、主要零件图的绘制。

A device and method for preparing compound nano fiber endless tow, which contains feeding material liquid to pair of electric spinning nozzle on frame, each nozzle respectively applied with high dc voltage with opposite polarity, each pair of nozzle jetting out nano fiber with opposite electric charge, said nano fiber attracting and colliding each other to form compound nano fiber, then forming nano fiber endless tow after drawing and stretching, the first opposite set pair of electric spinning nozzle jetted compound nano fiber endless tow is stretched down and used as acceptor which covered by the nano fiber jetted by second pair of nozzle an d forming two layers of compound nano fiber endless tow after drawing and stretching, in turn to get multilayer compound nano fiber endless tow after drawing and stretching by godet roller.

复合纳米纤维长丝束制备装置及其制备方法是一种简单、高效电纺制备纳米纤维长丝束的方法，其步骤为将料液输送给支架(3)上的电纺喷头对(1)；喷口相向的电纺喷头对(1)的每个喷头分别施加相反极性的直流高电压；每对相向喷口喷出分别带相反电荷的纳米纤维，并在空中相互吸引、碰撞形成复合纳米纤维，经牵引、拉伸后形成复合纳米纤维长丝束；第一对相向放置的电纺喷头纺丝形成的复合纳米纤维长丝束向下拉伸，并作为接受体与第二对电纺喷头喷出的分别带相反电荷并相互吸引的纳米纤维在空中相遇，被第二对电纺喷头喷出的纳米纤维包裹，经牵引、拉伸后形成两层复合纳米纤维长丝束；依次类推，最后经导丝辊对(2)牵引、拉伸后得到多层复合纳米纤维长丝束。

The import picture feature is useful for displaying graphics from other applications in your drawing. For example, a cross-section drawing could be imported as a DXF file from AutoCAD for use as a background graphic while defining the problem domain. This feature can also be used to display things like photographs or a company logo on the drawing. Pictures are imported as an AutoCAD DXF file, a Windows bitmap file, an enhanced metafile, or a Windows metafile,.

重要的图片特征便于从图中其他应用中显示图形，例如，当定义模型要素时，一个网格部分可以输出为DXF文件便于AutoCAD作为图纸背景使用，这种特征也可被用来在图中显示比如图片或公司logo，图片可以被输出为：AutoCAD DXF、BMP、EMF、WMF等格式。

The recognition method of circuit drawing plotted by AutoCAD is proposed It uses the topological graph to describe the electrical symbol s drawing and adopts the isomorphic graph algorithm to recognize the electrical symbols, meanwhile,the circuit wires are also recognized It can recognize the circuit drawing automatically with high accurac

提出自动识别使用AutoCAD绘制电气原理图的方法该方法利用拓扑图表示电气符号，采用图的同构算法识别电气符号，并在识别出电气符号的基础上识别电路线该方法能够以较高的准确率自动识别电气原理

In traditional 2D design process, designer converts his ideas to 2D drawing then forming assembly drawing and parts drawing. The designer's thought works between 3D ideas and lines of plane projection.

在传统的二维设计过程中，设计者首先将其构思转化成平面图，形成总装配图和各个零件图，设计者的思维一直在三维构思和平面投影的线条之间进行转换。

The classical cutting stock algorithm——column generation technology , and wrap up rectangle technology for abnormity are analyzed ; The development of AutoCAD with ObjectARX is studied and the generating method of cutting outline drawing and layout drawing were found out on the basis of analyses of the graph database structure of AutoCAD and the basic operation of it ; The process planning technology of plate material cutting orienting numerical control is studied a process planning method directly based on layout drawing is established ; The emulation technology in AutoCAD is studied and a kind of dynamic emulation method is put forward , which is realized by incrementally modifying graph entity ; The postposition of NC program of the integrated cutting system constructed on software plug-in is proposed , which can effectively solve the problem that it is difficult for a numerical control programming system to be common , which is caused by the difference of instruction format and control parameter between different type of numerical control machine .

分析了经典的矩形件优化排样算法——列生成法和针对异形件的矩形包络算法；研究了基于ObjectARX 的AutoCAD 开发技术，结合对AutoCAD 图形数据库结构及其基本操作的分析，给出了下料轮廓图和排样图的生成方法；研究了板材数控下料加工的工艺处理技术，建立了一种直接基于排样图进行的图形交互工艺规划方法；研究了在AutoCAD环境中的板材下料数控仿真技术，给出一种通过增量修改图形实体对象实现的动态仿真方法；提出以软插件技术构建集成下料系统的数控编程后置处理部分，能够有效解决因数控下料机床指令格式及控制参数不统一导致的自动编程软件系统不易实现通用性的问题。

Qi Baishi is one of the most famous Chinese artists who enjoys world reputation. During the one-century art career, with the unyielding resoluteness and enterprising spirit Qi Baishi unceasingly studied the drawing art, eventually he succeeded in setting up one kind of drawing style, opened a new epoch of Chinese drawing art, devoted valuable spiritual wealth to mankind.

齐白石是享誉世界的中国现代艺术大师，在近一个世纪的漫长生涯中，他以坚韧不拔的毅力和勇于进取的精神在绘画艺术领域不断探索创新，最终取得衰年变法的成功，开启了现代绘画一代新风，在中国美术史上写下浓墨重彩的一笔，为世界文化艺术宝库奉献上一笔宝贵的精神文化财富。

The paper uses Fortran language to compile the subroutine wich is similar to the window and view sentence in BASICA,and rewrites the drawing point and line subroutine with the assembled subroutine of drawing line in the reference one,thus FORTRAN drawing is not limited by the actual border of the screen and is able to enlarge,reduce and cut the graph.

用 FORTRAN 语言编写了类似高级 BASIC 绘图中窗口和视口语句的子程序，利用《高级语言图形开发功能初探》一文中画线汇编子程序，重新编制了画点和画线子程序，使 FORTRAN 绘图不再受屏幕实际边界的局限，可方便地实现图形的放大，缩小与剪辑。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48