cad经典模式
CAD：计算机辅助设计 (CAD: Computer Aided Design)
CAD is an abbreviation of Computer-Aided Design.CADis technical software used by engineers, architects, artists, drafters to create designs and to make technical drawings in two-dimensional (2D) and three-dimensional (3D). It is a merger of hardware and software that makes it easier for an engineer to design and create everything. It makes available for use the amenity to view a design or drawing for closure or a faraway look from any angle and to zoom in or out respectively. Furthermore, according to the designer changes happen by making the change in the design, all the coordinates and values which are depending on that also change.
CAD是Computer-Aided Design的缩写。CAD是工程师，建筑师，艺术家，制图员使用的技术软件，用于创建设计和制作二维(2D)和三维(3D)技术图纸。 它是硬件和软件的合并，使工程师可以更轻松地设计和创建所有内容。 它使使用该便利设施可以从任何角度查看设计或工程图以进行封闭或遥远的外观，以及分别放大或缩小。 而且，根据设计者的改变，通过改变设计而发生改变，取决于该改变的所有坐标和值也改变。
In 1980,CADsystems were diversely built and established computers earlier till the mid-80s, but nowCADsoftware is available to purchase and can be run on any personal computer system.
在1980年之前，CAD系统用于建造和建立计算机的方式多种多样，直到80年代中期，但是现在可以购买CAD软件，并且可以在任何个人计算机系统上运行。
Image source: .au/solutions/cad-drawing
图片来源：.au/solutions/cad-drawing
CAD工具 (CAD Tools)
Tools which are required for CAD software in computer systems are,
计算机系统中的CAD软件所需的工具是：
High quality graphics monitor
高品质的图形显示器
Digitizing tablet
数字化平板电脑
Light pen
光笔
Mouse
老鼠
Special printer or plotter
特殊打印机或绘图仪
CAD的用法 (Usage of CAD)
The arrangement of the physical constituent of the production of large scale products is designed by using 2D and 3D tools in the software.
通过使用软件中的2D和3D工具来设计大规模产品生产的物理组成部分的安排。
Space vehicles, aircraft, missiles, and satellites are designed by using CAD software.
航天器，飞机，导弹和卫星是使用CAD软件设计的。
CAD software is used for building purposes by architectures. In the case of floor plans, the 2D tool is used by them and in case of the schematics of houses 3d tool is used by them.
CAD软件用于体系结构的构建目的。 在平面图的情况下，他们使用2D工具，在房屋示意图的情况下，他们使用3d工具。
Auto components are designed by using CAD software such as tires, engines, etc.
汽车零部件是使用CAD软件设计的，例如轮胎，发动机等。
Climate, road, and topographic maps are designed by CAD software in cartography.
气候，道路和地形图由制图中的CAD软件设计。
优点 (Advantages)
It will save user's lots of time and the user can make more effective, satisfactory and more efficient designs in less time period.
这将节省用户大量时间，并且用户可以在更短的时间内做出更有效，令人满意和更高效的设计。
It will be much simpler and easier to make any changes because a user can fix the errors and improve the drawings easily.
进行任何更改都将变得更加容易，因为用户可以修复错误并轻松地改善图纸。
The percentage of error that happened because of manual designing is remarkably diminished because of the use of the best tools in the software.
由于使用了软件中最好的工具，因此由于手动设计而导致的错误百分比显着降低。
The amount of effort for the purpose of designing the diverse models has been diminished remarkably because most of the tasks are automated by the software.
由于大多数任务是由软件自动完成的，因此设计各种模型的工作量已大大减少。
缺点 (Disadvantages)
In CAD, work can be anytime lost because of the unexpected failure of computers.
在CAD中，由于计算机意外故障，工作随时可能丢失。
The work in CAD is susceptible to viruses.
CAD中的工作容易感染病毒。
The work in CAD could be easily "hacked".
CAD中的工作很容易被“黑客入侵”。
It takes time to learn, how to operate or run the CAD software.
学习，操作或运行CAD软件需要花费时间。
It takes high production costs or purchasing costs for new systems.
新系统需要很高的生产成本或购买成本。
翻译自: /dictionary/cad-full-form.aspx
cad经典模式
