??? ?? ?????????? ???????????? ???? ??? ???????????????????, ?? ????????? ????? ????????? ????????? ??? ????????? ???? ?? ??????, ??? ?? ????????? ???? ????????? ???? ??? ??????. ??? ??? ??? ????????? ???? ??? ???, ??? ??? ???? ??? традицион?????? ????? ???? ??????? ???????????? ????? ?????? ?? ??????????? ??????????????? ??????? ?????, ?? ??? ???? ?????? ??? ??????? ???? ??????????, ??? ??? ?????????? ????? ???? ???? ????? ??? ????? ?? ?????? ??? ??? ??? ??? ???????????. ??? ?????? ???? ??? ??? ??? ??????? ??? ?? ???? ?? ????? ??
??? ??????? ?????? ???? ???? ??????? ??? ???? ????? ?????????. Secondly, regarding the difficult to machine orientation, the viewpoint of the workshop can be changed to create cutting conditions for the tool, which can also shorten the length of the tool, avoid guiding ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????, ???? ???? ???????????? ?????? ??? ??????? ??? ????? ????????????.