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exchange code; exchange number; office code | |||
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station code | |||
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central office code |
局号 : 54 phrases in 14 subjects |
Aviation | 3 |
Business | 1 |
Earth sciences | 1 |
Electronics | 8 |
Exhibitions | 1 |
General | 3 |
Information technology | 5 |
Management | 2 |
Multimedia | 1 |
Oil / petroleum | 1 |
Shipbuilding | 1 |
Space | 3 |
Technology | 7 |
Telecommunications | 17 |