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| ultrahigh frequency (电磁波辐射频率为300〜3 000 MHz，或波长100〜10cm。特高频主要被军方用于空对空和空对地的视线基础上语言通信。在一些情况下，频率最低可达到 225 MHz,且仍被认为是特高频 UHF, UHF 波段也用于仪表着陆系统 (ILS)的下滑信标以及国际上 1000 MHz 的测距设备 (DME)。二次监视雷达也工作在 UHF 波段,其模式工作在1030MHz,代码工作在 1090 MHz) | |||
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| super-high frequency/extremely-high frequency | |||
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超高频、 特 高频 : 1 phrase in 1 subject |
| Telecommunications | 1 |
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