 |
| |||
| composite dam | |||
| |||
| composite dam | |||
| 混合式坝: 9 phrases in 4 subjects |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 3 |
| Technology | 4 |
|
| |||
| composite dam | |||
| |||
| composite dam | |||
| 混合式坝: 9 phrases in 4 subjects |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 3 |
| Technology | 4 |