???? - ????? ??????? ????? - ???????? ??? ?????? ????????? ?? ????????? ???? ?? ???? ?? ????????????? ?????????? ???? ?? ????, ??????? ? ???????? ?? ??????????: a mass or entire body of units or sections relatively loosely connected with each other Froth is surely an combination of very small bubbles.????????? ????? ??????????? ?????? ????? ??????