| |||
| 过滤法 | |||
|
filtration method : 18 phrases in 7 subjects |
| Agriculture | 1 |
| Chemistry | 3 |
| Ecology | 1 |
| Metallurgy | 1 |
| Technology | 10 |
| Textile industry | 1 |
| Water resources | 1 |
| |||
| 过滤法 | |||
|
filtration method : 18 phrases in 7 subjects |
| Agriculture | 1 |
| Chemistry | 3 |
| Ecology | 1 |
| Metallurgy | 1 |
| Technology | 10 |
| Textile industry | 1 |
| Water resources | 1 |