 |
| |||
| call select | |||
| 呼叫 选择: 38 phrases in 9 subjects |
| Aviation | 4 |
| Computer networks | 2 |
| Electronics | 9 |
| General | 1 |
| Information technology | 3 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 11 |
| Telecommunications | 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