??????????? ????? ??? ??????? ??? ??????????? ?? ??????????? ???? ???????????? ????????? ? ??????? ??????? ?? ???????? ? ??? ????????? ??? ????????? ????? ??? ?? ??? ??????????? ??? ????????? ?????? ??? ??? ??????? ???.????????? ??????? ???????? ????????? ??? ?????????? ??? ?????????? ??? ??????????The torque modulation may very well be attained by