 |
| |||
| 内部流通 | |||
| 内循环 | |||
| 内循环膨胀污泥反应器 | |||
| internal circulation: 15 phrases in 5 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Oil / petroleum | 1 |
| Technology | 9 |
| Water resources | 3 |
|
| |||
| 内部流通 | |||
| 内循环 | |||
| 内循环膨胀污泥反应器 | |||
| internal circulation: 15 phrases in 5 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Oil / petroleum | 1 |
| Technology | 9 |
| Water resources | 3 |