gaseous fluidization

例句：

1. 1.The balloon was filled with helium gas.
   这个气球充满了氦气。
2. 2.Gases are made by combining elements to form compounds.
   气体是通过将元素结合形成化合物而制成的。
3. 3. The atmosphere is mostly composed of gaseous substances.
   大气主要由气体物质组成。