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| modem nul | |||
| câble null modem (Special cabling that eliminates the modem's need for asynchronous communications between two computers over short distances. A null modem cable emulates modem communication) | |||
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| éliminateur de modem | |||
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null modem : 3 短语, 2 学科 |
| 信息技术 | 2 |
| 航空 | 1 |