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码字; 代码符号〔征数〕 | |||
码组 | |||
电码字符 |
code character : 53 phrases in 13 subjects |
Aviation | 1 |
Business | 1 |
Computers | 1 |
Earth sciences | 1 |
Economy | 1 |
Electronics | 6 |
Information technology | 23 |
Librarianship | 5 |
Multimedia | 1 |
Oil / petroleum | 2 |
Space | 3 |
Technology | 4 |
Telecommunications | 4 |