 |
| |||
| 地表水流 | |||
|
ground flow : 21 phrases in 7 subjects |
| Agriculture | 1 |
| Aviation | 2 |
| Bridge construction | 3 |
| Desert science | 1 |
| Ecology | 1 |
| Geotechnics | 1 |
| Technology | 12 |
|
| |||
| 地表水流 | |||
|
ground flow : 21 phrases in 7 subjects |
| Agriculture | 1 |
| Aviation | 2 |
| Bridge construction | 3 |
| Desert science | 1 |
| Ecology | 1 |
| Geotechnics | 1 |
| Technology | 12 |