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单词 mastergroup
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mastergroup
mastergroup n. Telecommunications an assembly of (in Britain) 300 or (in the United States) 600 voice channels on a single transmission band, formed by the combination of, respectively, five or ten supergroups each containing sixty voice channels.
ΚΠ
1969 J. Martin Telecommunications & Computer xvi. 296 Ten supergroups are multiplexed together to form one mastergroup, which carries 10 × 5 × 12 = 600 voice channels.
1986 G. Langley Telecommunications Primer (ed. 2) xix. 57 Five 12-channel groups can be combined to form a 60-channel supergroup, and five supergroups make up a 300-channel mastergroup.
extracted from mastern.1adj.
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