 |
| |||
| 特征图 | |||
|
feature map : 7 phrases in 6 subjects |
| Air defense | 1 |
| Desert science | 2 |
| Earth sciences | 1 |
| Electronics | 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