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三视图的尺寸标注
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三视图的尺寸标注. 箭头的画法. 28. 28. 28. 28. 20. 16. 圆的尺寸标注. 40. 20. 68. 32. 圆弧的尺寸标注. R16. R15. R18. R22. 60. 15. 90. 20. 60. 20. 30. 主视. 线性尺寸标注. 要求: 1 、正确; 2 、清晰:小尺寸在内,大尺寸在外;尽量在特征视图上标注 . 3 、完整:整体和局部都有长、宽、高的尺寸,不遗漏,不重复. 长度尺寸尽量标注在主、俯视图之间; 高度尺寸尽量标注在主、左视图之间。
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三视图的尺寸标注
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三视图的尺寸标注 箭头的画法
28 28 28 28 20 16 圆的尺寸标注
40 20 68
32 圆弧的尺寸标注 R16 R15 R18
R22 60 15 90 20 60 20 30 主视 线性尺寸标注 要求: 1、正确; 2、清晰:小尺寸在内,大尺寸在外;尽量在特征视图上标注. 3、完整:整体和局部都有长、宽、高的尺寸,不遗漏,不重复. • 长度尺寸尽量标注在主、俯视图之间; • 高度尺寸尽量标注在主、左视图之间。 • 尺寸线与轮廓线之间、尺寸线之间的间隔为6-7mm
20 R22 ⑥ ⑦ 45 60 ⑤ 15 90 ① 90 ② 仔细看看,这张图中的尺寸标注有哪些错误? 20 60 ③ ④ 30
R22 60 15 90 20 60 20 30 主视 正确的标注
图名 补画三视图并标注尺寸 比例 成绩 姓名 班级 座号
图名 补画三视图并标注尺寸 比例 成绩 姓名 班级 座号 1:1
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