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扫描 的 : 75 phrases in 14 subjects |
Air defense | 6 |
Aviation | 4 |
Computer numerical control | 1 |
Construction | 1 |
Earth sciences | 4 |
Economy | 1 |
Electronics | 6 |
General | 16 |
Geology | 3 |
Information technology | 4 |
Metallurgy | 2 |
Project management | 7 |
Space | 12 |
Technology | 8 |