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单 束波 : 24 phrases in 10 subjects |
| Air defense | 4 |
| Aviation | 1 |
| Earth sciences | 3 |
| Electronics | 6 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 4 |
| United Nations | 1 |
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