本文所述的交互式绘制零件图软件不用编写程序可描绘任意图形，标注尺寸及公差，书写字符及画表面粗糙度符号，并可起到数字化仪的鼠标器作用。
This software can plot freely, draw any figure, mark dimension and tolerance, write symbols and draw surface-roughness symbols. It can also function as a mouse in digitalizer.
使表面粗糙度符号实现了自动标注。
As a result, the surface roughness symbol can be automatically marked.
本文旨在通过用形方式定义并标注表面粗糙度符号的过程的介绍，使更多用户学会并乐于定义形和使用形。
The purpose of this paper is to make more user master the method and glad to definite shape and use shape defini…
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