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| линия апсид | |||
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拱线 : 33 phrases in 8 subjects |
| Astronautics | 1 |
| Astronomy | 2 |
| Construction | 5 |
| Electronics | 8 |
| General | 6 |
| Military | 1 |
| Shipbuilding | 2 |
| Technology | 8 |
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