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| 可更换 的: 32 phrases in 15 subjects |
| Automobiles | 3 |
| Aviation | 2 |
| Chemistry | 1 |
| Computers | 1 |
| Drilling | 2 |
| Economy | 1 |
| Electronics | 4 |
| General | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Refrigeration | 3 |
| Securities | 3 |
| Space | 1 |
| Technology | 7 |
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