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电数据计算机 : 18 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Business | 3 |
| Commerce | 1 |
| Earth sciences | 1 |
| Economy | 2 |
| General | 3 |
| Mathematics | 3 |
| Project management | 2 |
| Technology | 1 |
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