??? ???? ????? Y ??? ??? ???? ????? ?????, ???? ??????, ????? ?????? ???? ???? ????? ???????. ???? ???? ???? ?? ????? ?????? ?? ???? ???, ???? ?????, ????? ?????, ????, ?????? ?????? ??????, ????.
??? ???? ????? Y ???? ???? ????? ???? ????? ?? ???? ?????, ???????? ??????? ???????. ?????, ??? ?????? ?? ?????? ?? ?????? ??????, ?????, ???? ?????? ???? ????, ???? ?????? ???? ???. ??? ???? ?????? ????? ??????? ????? ???? ????? ???????-??? ?????? ???????-???, ??? ??????? ????? ?????? ?? ????? ??? ???? ??? ???? ????? Y. ?????? ???? ????? ???????? ???? ????? ????? ??????? ?? ???? ??????? ???? ?????? ????? ????? ?? ??? ????? ??? ?????. ?????? ??????? ????? ?????? ?????? ?????? V ???? ?????? ????? ???? ????? ???? ????? ????? ????? ??????? ??????? ?? ????? ??????. ????? ???? ?? ????? ?????? ??????? ???? ?? ?????? V ???? ?????? ????? ???? ?? ?????? ?? ?????, ???? ????? ??????? ?? ???? ??? ????? ?????? ?-V ??????? ?? ?????? ???????. ????? ????? ????? ???? ?? ??????? ????? ????. ???? ?????? ????? ?? ??? ?????? ?????? ????? Y ??? ???? ????, ?? ????? ????? ?? ?????? ?????? ?????? ?????? ????? ??????? ????? V, ????? ?????? ??????? ?? ?????? ?? ?????, ???? ????? ??????? ?? ???? ??? ????? ?????? ?-V ??????? ?? ?????? ???????. ????? ?????? ????? ???? ?? ??????? ????? ????.
????? ???? ?????
???? ???????? ???? ????
??? ????? V-belt
????? ???? ????, ????? ????? ??? ?? ?????? ?????? ????????
?? ????? ?? ??????? ???? ??????, ?????, ??????, ???????, ?????? ???? ?? ??? ???????? ????. ?????? ????? ?????? ?????? ???????? ????. ????? ??????? ??????? ???????? ???????? ????? ?? ??????? ???? ???? ?????? ????????. ???? ?????? ???????, ?????? ?????? ?? ??????? ???????? ???? ?? ?????? ?-麻豆社.
?????
