gaseous diffusion source

例句：

1. 1. Thegaseous diffusion source is a crucial component in the process of chemical reactions.
   气体扩散源是化学反应过程中的一个关键组成部分。
2. 2.The gaseous diffusion source is used to measure the concentration of pollutants in the air.
   气体扩散源用于测量空气中污染物的浓度。
3. 3.The gaseous diffusion source is an important tool for studying the behavior of gases in the environment.
   气体扩散源是研究气体在环境中行为的重要工具。