 |
| |||
| 地表水流 | |||
|
ground flow : 21 phrases, 7 sujets |
| Agriculture | 1 |
| Aviation | 2 |
| Construction de ponts | 3 |
| Écologie | 1 |
| Geotechnics | 1 |
| Science du désert | 1 |
| Technologie | 12 |
|
| |||
| 地表水流 | |||
|
ground flow : 21 phrases, 7 sujets |
| Agriculture | 1 |
| Aviation | 2 |
| Construction de ponts | 3 |
| Écologie | 1 |
| Geotechnics | 1 |
| Science du désert | 1 |
| Technologie | 12 |