名词
中文翻译：子波段
同义词：
['次波段，亚波段例句：1. The sub band of the radio wave is used to transmit signals.（无线电波的子波段用于传输信号。）']
例句：
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1. The sub band of the radio wave is used to transmit signals.
无线电波的子波段用于传输信号。
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2.The sub band of the spectrum is where most of the energy is concentrated.
频谱的子波段是能量最集中的地方。
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3.The sub band of the spectrum is where the highest frequency waves are located.
频谱的子波段是最高频率波所在的地方。