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| target simulation | |||
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目标模拟 : 39 phrases in 8 subjects |
| Air defense | 4 |
| Aviation | 11 |
| Business | 1 |
| Electronics | 6 |
| Geophysics | 1 |
| Shipbuilding | 1 |
| Space | 12 |
| Technology | 3 |
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