gas diffusion column

例句：

1. 1.The gas diffusion column is used to separate different gases in a chemical reaction.
   气体扩散柱用于化学反应中分离不同气体。
2. 2.In the gas diffusion column, the molecules diffuse through the column and are separated by size.
   在气体扩散柱中，分子通过柱体扩散并按大小分离。
3. 3. The gas diffusion column was designed to improve the efficiency of the separation process.
   气体扩散柱被设计来提高分离过程的效率。