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公共交换网
space public switching network
公共交换网简写为PSN
dat.proc. public switched network; public switched telephone network PSTN
公共交换信息网
space public switched network
公共交换网
: 23 phrases in 9 subjects
Agriculture1
Aviation2
Communications1
Data processing2
Electronics7
Information technology3
Space3
Technology2
Telecommunications2

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