 |
| |||
| 诸元记录板 | |||
| 记录板 | |||
|
data board : 42 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 11 |
| Earth sciences | 3 |
| Electronics | 6 |
| Space | 17 |
| Technology | 3 |
| Telecommunications | 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