 |
| |||
| karst cave | |||
| 岩溶 溶洞: 22 phrases in 7 subjects |
| Bridge construction | 2 |
| Desert science | 1 |
| Ecology | 1 |
| Engineering geology | 7 |
| Hydroelectric power stations | 2 |
| Oil / petroleum | 1 |
| Technology | 8 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips