 |
| |||
| acceptable quality | |||
|
合格的质量 : 8 phrases in 7 subjects |
| Bridge construction | 1 |
| Electronics | 2 |
| General | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 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