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单词 low frequency
释义

low frequency

noun
(In radio) 30-300 kilohertz.Until recently, submarines relied on long / low-frequency radio waves for communication....
  • Satellite navigation may be degraded for days, and low-frequency radio navigation can be out for hours.
  • This corresponds to a 2.2-fold difference in current amplitude in the low-frequency range.
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更新时间:2025/1/11 13:27:24