????? ?????? ?????? ?? ???????? ???? ??????? ???? ?????? ???????? ????? ???????? ??????? ??? ????? ???????? ?? ????? ???????? ??? ???? 6 – The chance to practice the trainees to implement the upkeep and mend manuals in a complicated civilized way.?????? ??????? ??????? ?? ???? ???? ?? ???? ?? ???? ?? ?????? ??? ????? ?????? ?? ??????? ????????.