???????:?????? ??????? ?????????? ??????????? ?????????????? ???? ???? ?????? ???? ?????? ????????.
?????? ??????? ?????? ???????? ????? ???? ??????? ???? ??????? ?????. ?????? ???? ?????? ??????? ?????? ????? ????????? ????????????? ?????????? ?? ???????? ????. ?????????? ????????? ???????? ????? ????????? ???????, ?????? ?????? ????? ???????? ???????? ????????????, ??? ?????? ?????? ????? ?????????? ?????????? ???????? ??????? ????? ???????? ????????????. ???? ???? ????? ???????????? ????????????????.
?????? ?????? ????? ????????? ?????, ??????? ?????????? ?????? ?????? ??????????, ????????, ?????????? ??????? ??? ???? ????????? ?????? ????????????????????.
?????? ???? ????? ???????? ?????? ??????, ???????? ??????, ???????, ?????? ????????, ????????? ???????? ????? ????????? ????????? ???????????. ??????, ?????? ???? ?????????? ????? ????????, ????? ??????? ????? ???????? ????????, ????? ????? ???????? ????? ????? ????? ????? ??????????? ???? ???????? ???? ???????. ??????, ????? ?????????? ???????? ?????? ???? ??????????, ???? ???? ????????? ????? ?????? ????? ????????? ???????????, ??????????, ?????? ?????? ???????? ????????, ????? ??????? ????? ?????????? ??????? ?????? ????????????.
?????? ???? ????? ?????? ???????, ?????????? ??? ?????????? ???????? ?????????? ???????? ????? ????? ????????? ?????????. ??????????? ?????? ?????? ?????????? ????? ????? ?????????? ????? ?????? ????????, ????? ??????? ??????? ???? ?????? ??????? ?????? ?????????????. ???????, ???????? ???? ??????, ???? ??????????? ???????? ?????? ?????? ???? ???????????, ????? ??????? ????????????? ??????? ??????? ???????? ?????? ?????? ?????????, ????? ???????? ??????? ???? ?????????? ??? ????? ????? ????????? ????????????.
Through the principle and construction of ?????? ????, we have a preliminary understanding of ?????? ????. Manufacturers also need to have a more detailed understanding of ?????? ???? parameters when purchasing ?????? ????s.





















