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服务数据装置 | |||
服务数据单元; 业务数据单元 | |||
服务数据块 | |||
服务数据单兀; 服务数据单元业务数据单位 | |||
English thesaurus | |||
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SDU (OSI) |
service data unit : 49 phrases in 10 subjects |
Agriculture | 1 |
Artificial intelligence | 1 |
Aviation | 3 |
Electronics | 24 |
Exhibitions | 1 |
Geophysics | 1 |
Information technology | 5 |
Multimedia | 1 |
Space | 5 |
Telecommunications | 7 |