 |
| |||
| contaminant | |||
| pollution The indirect or direct alteration of the biological, thermal, physical, or radioactive properties of any medium in such a way as to create a hazard or potential hazard to human health or to the health, safety or welfare of any living species | |||
| pollutant | |||
|
saaste : 55 短语, 3 学科 |
| 教育 | 2 |
| 环境 | 52 |
| 生命科学 | 1 |