??? ???????. ??? ??? ?????? ???? ????? ????? ??? ????? ?? ??? 6 – The ability to coach the trainees to work with the upkeep and mend manuals in a complicated civilized way. ???? ?????? ?? ???? ???? ??? ???? ?? ???? ????? ???? ??? ??????? ????? ?????? ????? ????? ??????? ????? ????? ?? ??