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transmission code |
传输码 : 36 phrases in 12 subjects |
Aviation | 2 |
Computer networks | 1 |
Earth sciences | 1 |
Electronics | 6 |
Geophysics | 2 |
Information technology | 4 |
Librarianship | 1 |
Multimedia | 1 |
Radio | 1 |
Space | 2 |
Technology | 7 |
Telecommunications | 8 |