 |
| |||
| signal unit | |||
| signal element | |||
|
信号元 : 75 phrases in 12 subjects |
| Air defense | 3 |
| Automobiles | 1 |
| Aviation | 3 |
| Business | 2 |
| Construction | 1 |
| Electronics | 22 |
| General | 1 |
| Information technology | 11 |
| Programming | 1 |
| Space | 5 |
| Technology | 8 |
| Telecommunications | 17 |
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