limit range and practical range
limit range and practical range
极限范围和实用范围
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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It begins with a history of the science and the growing realisation that the information-bearing power of the electromagnetic spectrum the range of frequencies and wavelengths available to carry signals is without practical limit.
ECONOMIST: Praise the baud | The