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甚低频3〜30千周/秒 | |||
电子学甚低频10〜 30kHz | |||
甚低频 (在 3〜30 kHz 的无线电频率范围内,这些频率总是靠地波传输,由于具有大功率和大的高效天线,它们可以覆盖全球。甚低频用于奥米伽导航系统) | |||
甚低频3—30千赫 | |||
甚低频3 ~30KHz | |||
超长波 | |||
甚低频 | |||
甚低频 (3 ~10千赫) | |||
极低频; 超低频 | |||
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极低频 | |||
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甚低频 VLF (3 千赫 ~ 30 千赫) | |||
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甚低频 | |||
English thesaurus | |||
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The frequency band between 3 and 30 kHz | |||
VLF (MichaelBurov) | |||
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VLF (3-30KHz) | |||
VLF (3 - 30 kHz) | |||
VLF |
very- low frequency : 38 phrases in 15 subjects |