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| asymmetric digital subscriber line (利用现有电话线,除电话业务外,还提供多个高速率的下行数据信道和中低速率的上行信道，上行和下行的速率不对称，-> xDSL); asymmetric digital subscriber line | |||
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| asymmetric digital subscriber line | |||
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不对称 数 字用户线 : 5 phrases in 2 subjects |
| Information technology | 2 |
| Telecommunications | 3 |
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