 |
| |||
| level of pollutant | |||
| pollutant level; pollution level | |||
| level of pollution | |||
| 污染水平: 47 phrases in 9 subjects |
| Automobiles | 1 |
| Earth sciences | 7 |
| Ecology | 1 |
| Electronics | 5 |
| Environment | 3 |
| Nuclear and fusion power | 1 |
| Technology | 22 |
| Water resources | 5 |
| Wind Energy | 2 |
|
| |||
| level of pollutant | |||
| pollutant level; pollution level | |||
| level of pollution | |||
| 污染水平: 47 phrases in 9 subjects |
| Automobiles | 1 |
| Earth sciences | 7 |
| Ecology | 1 |
| Electronics | 5 |
| Environment | 3 |
| Nuclear and fusion power | 1 |
| Technology | 22 |
| Water resources | 5 |
| Wind Energy | 2 |