[attachimg]6637[/attachimg][color=#ff0000]如图求孔8位置度[/color] [attachimg]6638[/attachimg] [color=#ff0000]测量[/color] [attachimg]6639[/attachimg] [color=#ff0000]建坐标[/color] [attachimg]6640[/attachimg] [color=#ff0000]定义圆1基准[/color] [attachimg]6641[/attachimg] [color=#ff0000]圆3更改公差[/color] [attachimg]6642[/attachimg] [color=#ff0000]高级极半径[/color]