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| 无线电探测 | |||
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| 无线电探测 | |||
| 无线电检测 | |||
| 无线电警戒 | |||
| radio-detection: 20 phrases in 9 subjects |
| Agriculture | 2 |
| Air defense | 9 |
| Aviation | 1 |
| Communications | 1 |
| Earth sciences | 1 |
| Geophysics | 1 |
| Space | 2 |
| Technology | 2 |
| Telecommunications | 1 |
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