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area code | |||
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area code |
地区码 : 17 phrases in 12 subjects |
Advertising | 1 |
Air defense | 1 |
Aviation | 2 |
Business | 2 |
Desert science | 1 |
General | 1 |
Geology | 1 |
Information technology | 1 |
Librarianship | 1 |
Multimedia | 2 |
Telecommunications | 3 |
Textile industry | 1 |