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| 可控间隙 | |||
| 调整间隙 | |||
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control gap : 30 phrases in 8 subjects |
| Air defense | 1 |
| Electronics | 2 |
| General | 1 |
| Metallurgy | 12 |
| Space | 1 |
| Steel production | 5 |
| Technology | 6 |
| Telecommunications | 2 |
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