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line circuit | |||
subscriber circuit | |||
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line circuit |
用户电路 : 51 phrases in 9 subjects |
Aviation | 1 |
Electronics | 25 |
General | 1 |
Information technology | 1 |
Multimedia | 1 |
Space | 2 |
Technology | 3 |
Telecommunications | 16 |
United Nations | 1 |