In this paper, a core program package related for drawing pictures in micro computers with Oriented Geometry is presented to describe profile of machine parts in numerical control.
本文以有向几何为背景陈述一个微机绘图核心程序包，用它描写数控加工零件的平面外型轮廓，并在微机上绘制各种复杂的平面图形。
Applicable to auto mould casting mould casting, heat resistant steel, high impact abrasion of the drawing and pressing machine, welding parts repair coating can be processed.
适用于汽车模具，热坯模，铸钢模耐中高温冲击磨耗之机件延压部分的修补，焊层可加工。
Applicable to auto mould casting mould casting, heat resistant steel, high impact abrasion of the drawing and pressing machine, welding parts repair coating can be processed.
适用于汽车模具，热坯模，铸钢模耐中高温冲击磨耗之机件延压部分的修补，焊层可加工。
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