gas diffusion ring

例句：

1. 1.The gas diffusion ring is used to prevent the spread of pollutants in industrial processes.
   气体扩散环用于防止工业过程中污染物的传播。
2. 2. The gas diffusion ring was designed to improve the efficiency of the separation process.
   气体扩散环被设计用来提高分离过程的效率。
3. 3.The gas diffusion ring is a critical component of the air filtration system.
   气体扩散环是空气过滤系统的一个关键组件。