名词
中文翻译：黑白信号载波
同义词：
['black-and-white carrier', 'black-and-white signal', 'black-and-white transmission']
例句：
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1. The blackand white signal carrier was used to transmit signals over long distances.
黑白信号载波被用来在长距离上传输信号。
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2.The black and white signal carrier is a crucial component of modern communication systems.
黑白信号载波是现代通信系统的关键组成部分。
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3.The black and white signal carrier was the first to provide reliable communication over vast distances.
黑白信号载波是第一个提供可靠远距离通信的。