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| Doppler navigation radar | |||
| 多普勒导航 雷达: 18 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Earth sciences | 2 |
| Electronics | 2 |
| Geophysics | 2 |
| Shipbuilding | 3 |
| Space | 5 |
| Technology | 1 |
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