| |||
| 持久性污染物 | |||
| 持久性污染物 | |||
| 持续性污染物 | |||
|
persistent pollutant : 12 phrases in 6 subjects |
| Chemistry | 1 |
| Desert science | 1 |
| Environment | 2 |
| Technology | 1 |
| United Nations | 6 |
| Water resources | 1 |
| |||
| 持久性污染物 | |||
| 持久性污染物 | |||
| 持续性污染物 | |||
|
persistent pollutant : 12 phrases in 6 subjects |
| Chemistry | 1 |
| Desert science | 1 |
| Environment | 2 |
| Technology | 1 |
| United Nations | 6 |
| Water resources | 1 |