 |
| |||
| core sample | |||
|
岩心 样 : 15 phrases in 9 subjects |
| Bridge construction | 1 |
| Construction | 1 |
| Drilling | 5 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Geophysics | 1 |
| Oil / petroleum | 2 |
| Technology | 1 |
| United Nations | 1 |
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