 |
| |||
| 数字化数据 | |||
|
digitized data : 13 phrases in 5 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Desert science | 2 |
| Space | 2 |
| Technology | 6 |
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