 |
| |||
| 编码图像 | |||
| coded image: 4 phrases in 4 subjects |
| Geophysics | 1 |
| Information technology | 1 |
| Oil / petroleum | 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