A foam is a colloidal system in which gas bubbles are dispersed in a liquid or solid . 泡沫也是一種膠體體系,其中氣泡分散在液體和固體里。
The final result is a polyphasic colloidal system , in which water molecules are bound to the dispersed gas bubbles , oil droplets and solid fragments , all of which are less than five microns in size 最終的成品是由多相膠體所組成的液體,里頭散布著大小不超過(guò)五微米的氣泡、油滴及固態(tài)碎片,與水分子結(jié)合在一起。