very-high-frequency radio beacon的意思|示意
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甚高频无线电信标
very-high-frequency radio beacon的网络常见释义
甚高频无线电信标 very-high-frequency radio beacon 甚高频无线电信标 low frequency non-directional radio beacon 低频全向无线电信标 medium frequency non-directional radio beacon 中频全向无线...