??????? ????????? ?? ???????? ?? ????? ? ?????????? ?? ????????? ?? ??????? ????? *The issues, options, and developments explained below also explain the history of transmission evolution in semi-trailer vehicles. The most important distinction is fleet turnover; whereas the vast majority of previous highway tractors have extended considering that

???????? ????????-??????????? ???????? ??????????? ???????? ? ??? ???????????? ??????????? ????? ??????? ??????????? ????????????? ????????????? ??????????? «???????????».??????????? ?????? ???-???? ????? ??????? ?????? ????? ???? ?????? ???????A relatively latest development would be the alternative of wheels or steel crawler-variety tracks with