 |
| |||
| surface exposure | |||
| 地面出露: 9 phrases in 5 subjects |
| Economy | 1 |
| Engineering geology | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Technology | 4 |
|
| |||
| surface exposure | |||
| 地面出露: 9 phrases in 5 subjects |
| Economy | 1 |
| Engineering geology | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Technology | 4 |