| 单词 | visual-aural (radio) range |
| 释义 | visual-aural (radio) range in American English (ˈvɪʒuəlˈɔrəl) US a radio range that sends out signals as an aid to air navigation; esp., a very-high-frequency range that beams four signals, two for reception by the ear and two for viewing on an indicator |
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