long-wave
英
['lɒŋw'eɪv]
美
['lɒŋw'eɪv]
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名词 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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用作名词 (n.)
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In radio communication, either short or long waves may be used.
无线电通讯可以采用短波也可以采用长波。
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Short wave lengths correspond with high frequencies,and long wave lengths to low frequencies.
短波波长和高频相对应,长波波长与低频相对应。
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