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单词
hectometric wave
释义
hectometric wave
hectometric wave
[
‚hek·tə′me·trik ′wāv
]
(communications)
A radio wave between the wavelength limits of 100 and 1000 meters, corresponding to the frequency range of 3000 to 300 kilohertz.
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更新时间:2025/10/30 13:18:39