51吃瓜

?????????????? ????? ??????????? ?????? ??? ?? ???? ???? ????????? ?????????????? ???????????????????? ?? ??????????? ?? ??????????? ????? ????????? ??? ????? 1. 2. ????? ???? ??? ???????????????????? Develop a process route for machining parts, including rough machining, semi precision machining, and precision machining stages. 4 5. ????????? ?? ??????? ????????? ??? ??????????? ???????? ????? ???? ????????. 6. ????????????? ?????? ????? ????????, ?? ???? ??????????? ?????????????????, ??????????, ???????????, ??” 7. ?????????? ????? ??????, ????? ???????? ??? ?????????, ??? ????????? ?? ??????? ??? ???? ??? ?? ?????. 8. ??????? 半????????? ?????? ?? ????????? ??? ????? ??? ???? ???? ?? ???????, ??? ???????????? ????? ????????? ??????. 9. ????????? ???????????? ?????? ?? ?????????? ?? ????????? ???? ?? ??зайн???????, ???? ????????, ??????, ?????????? ??? ?????? ????????????????????. 10. ????????? ??????????? ??? kwalite? ??????????? ?? ?????? ??? ?????? ?????????? ???????????? ??? kwalite? ??????????? meet. 11. ?????????? ??????-??????????? ????? ???? ??????????, ???? ????????????, ????????, ??.