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| B通道 | |||
| B 通［信］道 | |||
| B 通［信］道 (B channel); 集合信道 | |||
| 承载信道 | |||
| 荷载信道 | |||
| 承载通路; ISDN 的 B 通路64kb/s; 承载信道24kb/s, 32kb/ s,40kb/s, 或 64kb/s; ISDN 的承载信道 | |||
| bearer channel: 7 phrases in 6 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Electronics | 2 |
| Information technology | 1 |
| Technology | 1 |
| Telecommunications | 1 |
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