51吃瓜

???? ????? ?? ??? ????? ?? ?? ??? ?? ????? ???? ???? ??? ???? ????? ????? ?? ????? ??? ?? ?? ????? ?? ?? ?? ????? ???? ?? ????? ?? ????? ????? ????? ?????. ?? ???? ???? ????? ??? ??? ?? ????? ??? ?? ???? ??????? ???? ?????????? ????? ??????? ??? ????? ?????? ?? ???? ??. ???? ?????? ?? ??????? ?? ????? ?? ????? ???? ?????? ???? ??: 1. ???????? ??? ?????: ?????? ??? ????? ????????? ?? ???? ????? ?? ???? ?????? ??????? ?? ???????? ??? ????? ?? ????? ??? ??? ????? ??? ????? ??? ????????? ????? ?? ????? ???? ?? ?????? ?????? ???? ?? ??????? ?????? ?? ????? ???? ??? ????? ?? ??????? ??? ???? ?? ????? ???? ?? ?????? ?? ?? ?????? ??? ????? ???? ?? ?????? ??? ?????? ???? ?? ??? ?????? ????? ???? ??? ????? ?????? ??? ????? ?? ????? ?? ???? ?? ???? ??. ???? ???? ??? ?????: ???????? ?? ????? ???????? ?? ?????? ?? ????? ???? ??? ????? ?? ????? ????? ?? ????? ??? ??? ??? ???? ?? ?? ????? ???? ???? ?? ???? ???? ?????? ????? ???????? ?? ???????? ?? ?????? ????????? ????? ???? ??? ???? ???? ?? ?? ????????? ??? ?????? ?? ??? ????? ???? ??? ???? ?? ???? ?????? ?????? ?? ???? 3. ??? ???? ?? ?????? ????? ??? ??????: ??? ???? ???????? ?? ????? ????? ?? ???? ????? ???? ?????? ??? ???? ???? ???? ??? ??? ????? ?? ????? ??? ????? ??? ???? ???? ??? ????? ??? ???? ???? ??? ???? ???? ?? ?????? ???? ??? ??????? ??? ??????? ??? ???? ??. ???? ?? ?? ???? ?????? ?? ????? ?? ???? ??? ??? ???? ???? ????? ?? ?? ???? ??? ????? ???? ?? ??? ????? ????? ?? ?????? ?? ??? ??? ??? ????? ????? 4. Customized production: With the increasing fierce market competition, customers' demand for personalized and customized products is also increasing. ?????? ???? ???? ?? ?????? ????? ??? ?? ????? ??? ????? ??? ????? ?? ?? ??????? ?? ???? ????? ?? ???? 5. Digitization and Networking: with the rapid development of digitization and networking technologies, precision parts machining will gradually achieve digitization and networking. ????? ?????? ????? ??? ????? ????????? ?? ????? ???? ?? ?????? ???? ?????? ????? ???? ??? ????? ????? ?? optimization ?? ????? ???? ??. ???? ?? ?? ??? ??? ???? ?? ??????? ????? ??? ??? ?????? ???? ?? ??? ?????? ??? ?????? ???? ???? ??? ?????? ?? ??????? ??? ??????? ?? ???? ?? ???? ??.