????? ?? ?????????? ? ??. ????? ??????? ? ???????????: a mass or system of models or sections relatively loosely connected with each other Froth is surely an mixture of tiny bubbles.??????? ?? ????? ???????????? ??????? ????????? ??????? ???????????? ??????? ???? ???????????? ?????? ??????? ??? ????????????????? ?? ??? ?? ??? ? ????????? ? ????????