???? Conventions ??????? essential ????? operation projects ??? ????? ??????. ???? ??? ????????? obligations ??? party ???? relates to upkeep machinery, and details schedules official. Aids ??? ????????? ?? minimizing disputes ??? parties ???????? duties ?? side Aids ?? ensuring quality ???????? ????? ????? ???? ????? ????????? ?????? ?????

??? ???? ?? ?????? ??? ???? ?????? ???? ??? ??????? ??????. ??? ???? ???? ?????? ??? ?????? ??????. ??? ??? ?????? ??? ????? ??? ??????? ????????, ??? ?????? ?? ????? . ?????? ????? ?????? ? ?????? ???? ? ????? ??????. ???? ??????? ?????? ???? ????? ????? ?????? ??????? ???? ?????? ?? ?? ?????. ???? ?? ????? ??? ??????? ???? ???? ????? ?????? ??