 |
| |||
| 半双向通信; 双向择一通信 | |||
| 双向交替通信; 半双工通信 | |||
| |||
| 双向交替通信 | |||
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