Now day, many CAD systems such as ACAD software produced by Autodesk Company have strong drawing function which makes our drawing work quicker and better.

• 当今的一系列的计算机辅助设计软件,典型的如 Autodesk 公司出品的ACAD 软件,提供了强大的绘图功能,使得工程制图的绘图速度和绘图质量得到很大的提高。