 |
| |||
| 河床保护 | |||
| 河岸稳定 | |||
|
stream stabilization : 4 phrases in 3 subjects |
| Bridge construction | 1 |
| Geotechnics | 1 |
| Oceanography & oceanology | 2 |
|
| |||
| 河床保护 | |||
| 河岸稳定 | |||
|
stream stabilization : 4 phrases in 3 subjects |
| Bridge construction | 1 |
| Geotechnics | 1 |
| Oceanography & oceanology | 2 |