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n
Synchronous Digital Hierarchy
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n
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comp.
同期デジタルハイアラキー
English thesaurus
Synchronous Digital Hierarchy
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abbr., file.ext.
SDH
IT, abbr.
SDH
(FDDI, ATM, SDH)
telecom., abbr.
SDH
(ITU-T)
;
SDH
(SONET)
Synchronous Digital Hierarchies
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abbr., scottish
SDH
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