室内空气污染物包括悬浮固体污染物和气体污染物。

Indoor air pollutants consist of suspended solid pollutants and gaseous pollutants.

youdao

室内空气污染物包括悬浮固体污染物和气体污染物。

Indoor air pollutants consist of suspended solid pollutants and gaseous pollutants.

youdao