At present most of commercial CAD systems lack manufacture information of components. and many experiments about feature description of components exist more limitation.
目前大多数商用CAD系统缺乏零件的制造信息，而且许多实验系统所进行的零件特征描述亦存在较大局限性。
There exist many design techniques for ASICs, which are based on advanced design tools and extensive bases for IC CAD.
专用集成电路的设计目前有很多方法，但都基于有先进的设计工具和较为丰富的集成电路CAD库。
There are professional propeller CAD/CAM software overseas, but these software are expensive, many factories can not pay them.
国外有专用螺旋桨CAD/CAM软件，但是，这些软件价格及其昂贵，令大多数厂家难以承受。
The design of garment pattern CAD relates to many modification methods, one of which is free curve modification. However, many modification modules in the present CAD software have drawbacks.
服装纸样CAD设计涉及到许多修改，其中一个主要修改模块是自由曲线的修改，但目前CAD软件中的修改模块有许多不足。
During the construction process of GIS projects, many users have the demand on the conversion between the CAD data and GIS data.
在GIS项目的建设过程中，很多用户都有将GIS数据与CAD数据相互转换的需求。
Along with the popularization of computer, CAD software is widely used in many industries, especially in the architectural and mechanical industries.
随着计算机的普及，CAD软件在很多行业得到广泛的应用，尤其是建筑和机械行业。
Variational design is the kernel of contemporary CAD technology. There are many solving methods for geometric constraint solving at the aim of variational design, but they all have some limitations.
变量化技术是当代CAD技术的核心，以实现变量化设计为目的的几何约束求解有多种方法，但它们都存在一定的局限性。
Now , 2D CAD drawing software is very prevalent , but which has many limits in exhibition of 3D objects.
目前二维CAD绘图软件的使用已相当普遍，但二维图形表示三维物体存在许多局限性。
The way has saved the lives of many patients with CAD and improved their quality of life.
挽救了许多CAD患者的生命，提高了他们的生活质量。
Recently, many software companies developed and manufactured various kind of collaborative design software of CAD in domestic, along with the development and application of CAD design software.
近年来，随着CAD设计软件的开发与应用，国内有许多软件公司开发、研制了各种CAD协同设计软件。
On the other hand, developers and providers of many clothing CAD system have made the particular pattern grading function as their system feature to publicize, explore and research.
另一方面，各服装CAD系统的开发、供应商也将独特的纸样放缩功能作为各自系统的特色进行宣传、探索与研究。
The design of garment pattern CAD relates to many modification methods, one of which is free curve modification.
服装纸样CAD设计涉及到许多修改，其中一个主要修改模块是自由曲线的修改，但目前CAD软件中的修改模块有许多不足。
Spatial databases are being applied widely in many applications such as GIS, CAD, Robot, Computation, Geometry, Computer Vision, Physic Image and Multimedia System etc.
空间数据库已广泛地应用于GIS,CAD、机器人、计算几何、计算机视觉、医学图像和多媒体系统等领域。
The algorithm have large application value in the many fields such as models partition, constructing, geometric character distilling in CAD, the manufacture shop and robot motion track planing.
该算法在CAD模型分割、建造、几何特征提取、生产车间以及机器人运动轨迹规划等方面都有很高的应用价值。
Now, many digital logic systems cannot do without computer aided design CAD, especially the VHDL Hardware Description Language.
数字逻辑系统的设计离不开计算机辅助设计CAD工具的帮助，尤其是VHDL硬件描述语言。
CAD data are a main data source of GIS, and many problems will come forth when they are converted into GIS format, including losing block information, or point feature changed.
CAD数据作为GIS的一种主要数据源，转换为GIS格式后将出现图块信息丢失或点要素性质改变等问题。
It has many applications in CAD. It is proved that the problem of determining the crossing number of an arbitrary graph is NP-complete.
图的交叉数问题是在实际应用中提出来的，在CAD领域有广阔的应用。
There are many 3d modelling platforms for the development of CAD system.
众多的造型平台又为CAD系统的开发提供强大的支持。
Many researches show that the accuracy of the pathology detection can be further enhanced by using computer aided diagnosis (CAD) technology.
大量的研究表明，使用计算机辅助诊断技术(CAD)可以进一步提高病理诊断的准确性。
During the process of developing the system, many key technical problems such as how to get data from CAD drawings, dynamic links to database and how to deal with chart data have been well resolved.
开发过程中，对系统中的关键技术如CAD图形信息获取、数据库动态连接功能的实现以及如何对图表数据进行处理提出了相应的解决方法。
This algorithm can handle all kinds of complex sectional drawing and has many advantages. For example, its program is simple, rapid and fits microcomputer CAD system well etc.
可以处理各种复杂形状的剖面线图形，而且具有程序简单、使用方便、速度快、通用性强、便于扩充应用等优点，适合于在微型计算机上开发CAD系统应用。
The 3d engine plays an important role in many areas, such as virtual reality, digital city, film advantage, CAD and visual computer science.
三维图形引擎在虚拟现实、数字城市、影视广告、计算机辅助设计和科学计算可视化等各个方面起着十分重要的作用。
Today, in many corporations the application of CAD is limited to replacing drafts - panel. The function of CAD is not made the most of application.
目前企业CAD的应用还局限于取代图板的阶段，没有充分发挥CAD软件的设计作用。
Today, in many corporations the application of CAD is limited to replacing drafts - panel. The function of CAD is not made the most of application.
目前企业CAD的应用还局限于取代图板的阶段，没有充分发挥CAD软件的设计作用。
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