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主推进 : 45 phrases in 10 subjects |
| Astronautics | 1 |
| Aviation | 10 |
| China | 6 |
| Construction | 1 |
| Finances | 2 |
| Nautical | 3 |
| Shipbuilding | 2 |
| Space | 12 |
| Technology | 7 |
| United Nations | 1 |
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