adsorbed layer

例句：

1. 1. The adsorbed layer on the surface of the soil is crucial for plant growth.
   土壤表面的吸附层对植物生长至关重要。
2. 2. The researchers found that the adsorbed layer could be used to filter out pollutants from the air.
   研究人员发现吸附层可以用来过滤空气中的污染物。
3. 3. The adsorbed layer plays a significant role in the adsorption process.
   吸附层在吸附过程中起着重要作用。