Swirld.fr
2020-09-19T13:14:57+00:00
[img]https://img.nga.178.com/attachments/mon_202009/26/-7Q5-29h9ZcT3cSsg-lc.jpg.medium.jpg[/img]
现在就已知一边120°直径54,一边115°直径53,槽底相交位置的尺寸是啥?怎么算?
现在就已知一边120°直径54,一边115°直径53,槽底相交位置的尺寸是啥?怎么算?
Swirld.fr
2020-09-19T13:14:57+00:00