名词
中文翻译：窄带射频信道
同义词：
['narrow-band radio frequency channel', 'narrow-band radio channel']
例句：
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1.The narrow-band RF channel is crucial for secure communication in a crowded city.
在拥挤的城市中，窄带射频信道对于安全通信至关重要。
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2.The narrow-band RF channel is used to transmit data over long distances without interference.
窄带射频信道被用来在没有干扰的情况下传输数据，实现长距离通信。
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3. In the military, narrow-band RF channels are essential for jamming enemy communications.
在军事领域，窄带射频信道对于干扰敌方通信至关重要。