| |||
| 污浊负荷量 | |||
|
pollution loading : 12 phrases in 5 subjects |
| Earth sciences | 1 |
| Engineering geology | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
| Water resources | 1 |
| |||
| 污浊负荷量 | |||
|
pollution loading : 12 phrases in 5 subjects |
| Earth sciences | 1 |
| Engineering geology | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
| Water resources | 1 |