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复孔机 : 31 phrases in 12 subjects |
| Astronautics | 1 |
| Business | 2 |
| Computers | 2 |
| Electronics | 2 |
| General | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Metallurgy | 5 |
| Oil / petroleum | 3 |
| Technology | 11 |
| Telecommunications | 1 |
| Textile industry | 1 |
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