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| 下降性能: 21 phrases in 11 subjects |
| Air defense | 1 |
| Automobiles | 3 |
| Aviation | 2 |
| Commerce | 1 |
| Computers | 2 |
| Electronics | 2 |
| General | 4 |
| Reliability | 1 |
| Space | 2 |
| Technology | 2 |
| Transport | 1 |
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