 |
| |||
| 示范区 | |||
|
model zone : 14 phrases in 8 subjects |
| Earth sciences | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 5 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 3 |
| Water resources | 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