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| 海军研制中心美国 | |||
| 海军研制中心 | |||
| Naval Development Center: 18 phrases in 7 subjects |
| Aviation | 5 |
| Earth sciences | 3 |
| Electronics | 1 |
| General | 4 |
| Navigation | 1 |
| Shipbuilding | 2 |
| United States | 2 |
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