Here, the elaborate machine, that's a complex mixture of basic machine units, use mechanical Power and electrical Vitality to try this job. It's not necessarily similar to an easy machine. This bulldozer is an illustration of a compound or complicated machine. The form with the contacting surfaces from the cam and follower determines the movement

????? ???????????? ??????? ???????????? ??????????? ???????????????????? ??????? ??????????????/??????????? ??????? ????????????? ??????? ???????????? ??????/????????? ????? ?????? ??? ??? ????? ??? ??? ????? ??? ?????? ????? ?? ???????? ???? ?????? ?????? ?? ???? ????? ???? ???? ?????? ????? ????? ??? ?? ??? ??????. ??? ?? ???? ???????? ???????