? ?????? ???? ????????????? ???????? ????????? ???????? ?????????? ?? ????, ??? ?????????? ???????? ?????? ? ??? ???????????? ??, ??????? ?????????? ?????????????.???????? ?????????????? ???????? ??????????? ? ?????????? ?????, ??????? ??????? ??????? ???????? ??????.A bulldozer is really a observe-type tractor by using a blade hooked up inside the