| |||
| 反向流 | |||
|
reversal flow : 9 phrases in 7 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Electricity | 1 |
| International Monetary Fund | 2 |
| Oceanography & oceanology | 1 |
| Technology | 2 |
| Wind Energy | 1 |
| |||
| 反向流 | |||
|
reversal flow : 9 phrases in 7 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Electricity | 1 |
| International Monetary Fund | 2 |
| Oceanography & oceanology | 1 |
| Technology | 2 |
| Wind Energy | 1 |