???? ?? ???????? ??????? ?/? ??????, ???????? ????????? ???????????? ??????? ?????????? - ????????? ?????? ???????????? ???? ??????. ? ????????, ???????? ?????????????? ? ??????????? ?? ???????????????? ??????, ?????? ??????? ????????? ?? ????????? ??????????.These early tractors were being cumbersome, and sick-suited to enter a discipline of plant