 |
| |||
| 气堵 | |||
| gas block: 19 phrases in 5 subjects |
| Communications | 1 |
| Drilling | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 3 |
| Technology | 11 |
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