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| direction finding/ finder | |||
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定向/测向器 : 23 phrases in 11 subjects |
| Air defense | 1 |
| Aviation | 3 |
| Desert science | 1 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 10 |
| United States | 1 |
| Wind Energy | 1 |
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