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| 换行 器: 55 phrases in 14 subjects |
| Air defense | 1 |
| Automobiles | 2 |
| Aviation | 5 |
| Drilling | 1 |
| Earth sciences | 3 |
| Electronics | 13 |
| General | 4 |
| Information technology | 1 |
| Mathematics | 6 |
| Metallurgy | 1 |
| Plastics | 1 |
| Space | 4 |
| Technology | 10 |
| Telecommunications | 3 |
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