第一部分、标注尺寸的基本要求

2026-04-23 网络整理佚名940

Key Point:同学们好，现在我们学习机械制图基础知识：尺寸注法、标注尺寸的基本方法。这是我们后续要学习的零件图。图中就有尺寸标注。在生产实际当中要用到图纸，图纸上的图形表达了零部件的形状

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