 |
| 钻探船: 41 phrases in 6 subjects |
| Earth sciences | 2 |
| Engineering geology | 3 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Technology | 32 |
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