low-frequency omnidirectional range 低频全向作用距离
Very-high-frequency Omnidirectional Range 甚高
very-high-frequency omnidirectional radio range 甚高频全向无线电信标
frequency omnidirectional radio range 甚高频全向无线电信标
frequency omnidirectional range
频率全向范围
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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