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数据自动系统 |
data automatic system : 111 phrases in 14 subjects |
Air defense | 3 |
Aviation | 28 |
Business | 3 |
Earth sciences | 8 |
Economy | 1 |
Electronics | 18 |
General | 3 |
Geophysics | 8 |
Information technology | 3 |
Mathematics | 1 |
Shipbuilding | 1 |
Space | 15 |
Technology | 15 |
Telecommunications | 4 |