 |
| |||
| mid ocean ridges | |||
| mid-oceanic rise | |||
| mid-oceanic ridge | |||
| 大 洋中脊: 14 phrases in 6 subjects |
| Earth sciences | 5 |
| Geology | 1 |
| Navigation | 1 |
| Oceanography & oceanology | 2 |
| Oil / petroleum | 1 |
| Technology | 4 |
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