- digital data communication set
- 数字: figure; digit; numeral; char ...
- 设备: equipment; device; facility; ...
- 数字数据通信: ddc digital data communication; didac digital data communication; digital data communication
- 数据通信设备: data communication equipment (dce); datacom equipment; dce data communicatio equipment; dce data communication equipment; dce data communications equipment
- 数字数据通信链路: digital data communication link
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