 |
| |||
| positive reserve | |||
|
探明的储量 : 6 phrases in 5 subjects |
| Business | 1 |
| Drilling | 1 |
| Engineering geology | 2 |
| Geology | 1 |
| Technology | 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