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典型参考系统 |
model reference system : 22 phrases in 13 subjects |
Automated equipment | 2 |
Aviation | 1 |
Communications | 1 |
Computer networks | 1 |
Earth sciences | 2 |
Electronics | 3 |
Information technology | 1 |
Mathematics | 1 |
Multimedia | 1 |
Scientific | 1 |
Space | 3 |
Technology | 3 |
Telecommunications | 2 |