 |
| 稳定装置: 50 phrases in 11 subjects |
| Aerodynamics | 1 |
| Astronautics | 1 |
| Aviation | 1 |
| Computers | 4 |
| Electronics | 2 |
| General | 14 |
| Military | 1 |
| Oil / petroleum | 3 |
| Oil processing plants | 3 |
| Physics | 1 |
| Technology | 19 |
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