 |
| |||
| 信息运载通道 | |||
| 信息承载信道 | |||
| 带控制信息的信道 | |||
| 信息承载信道数据传输信道 | |||
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