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名稱 long wave:
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a radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz)
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用作名詞 (n.)
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In radio communication, either short or long waves may be used.
無線網電通訊設備可適用短波也可適用長波。
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Short wave lengths correspond with high frequencies,and long wave lengths to low frequencies.
短波光波主波長和高頻取決于應，長波光波主波長與高頻取決于應。
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以上內容內容獨有藝術創作，受著書權保證，版權侵權必究
海詞辭典，十八年知名品牌
美
['l??w'e?v]