????? ????????, ????? ??? ????? ??????????? ?????? ???? ???????? ???????? ???? ?????? ???? ????????? ????? ???? ????. ?? ???? ???? ?? ???? ???? ?????????? ?????????? ??????????? ??????? ?????? ?????. ???????? ??? ????? ??????????? ?????? ???? ??? ??????? ???????? ??????-??????? ???? ???????? ????? ????????????? ????? ?????.
1. ??????????? ???? ???? ?????????? ???????? ???????? ???-?????? ??? ???? ???, ???????? ????-??????? ?????? ???? ??????? ?? ??? ????? ??????????????? ??? ??????????? ????? ????????? ?????????? ???? ???? ????;
2. ???? ???? ???????? ????? ????? ??? lubrication ?? ????? ????, ???????? ???? ?????????? ???????????? ? ????????? ?????? ??? ??????? ??? ????. ????, ???????? ??? ?????? ??? ???? ???;
3. ???-?????? ??? ???????? ??? ??? ??????????? ??????? ??? ??? ???? ??? ????? ???? ??? ????.
?????
