???? ??????? ?? ?????? ????? ???? ???? ??????? ?? ???-???? ???????? ????? ??? ????? ???? ????-???? ????????? ???? ??????? ?? ????? ??? ??? ? ???? ??????? ?? ???, ???? ????????, ?????????? ???? ??????? ??, ???? ?????? ?? ??? ?? ????? ??????? ?????? ????????? ?????? ??...30 several years back, GPS technology was launched into the survey earth—but o