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| 标图器: 19 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 5 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 2 |
| Metallurgy | 1 |
| Nautical | 1 |
| Project management | 1 |
| Space | 3 |
| Technology | 3 |
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