Time will pierce the surface or youth, will be on the beauty of the ditch dug a shallow groove ; Jane will eat rare!A born beauty, anything to escape his sickle sweep .-- Shakespeare 目 录 课程设计的目的 一、零件的分析 二、零件的工艺分析 三、毛坯设计 四、选择加工...

时间:2024-12-05 22:42栏目:行业资料