Flotation is a process for separating low density solids or liquid particles from a liquid phase. 浮选是从液体中分离出低密度固体物或液态颗粒。
To do this, the glider would contain a waxy gel that changes density under different temperature conditions, thus changing its buoyancy. 要达到这个目标,滑翔机将会包含一种蜡色胶体,能够在不同温度下改变密度,这样来改变它的浮性。