在线翻译

信号在时域压缩a倍时，则在频域中频带加宽，幅值压缩b倍；.. 翻译

原文（简体中文）：

信号在时域压缩a倍时，则在频域中频带加宽，幅值压缩b倍；反之信号在时域扩展时更多：https://www.bmcx.com/ ，在频域中将引起频带变窄，但幅值增高

翻译结果（英语）1：

Signal in the time domain compression times a frequency domain band widening amplitude compression b times; contrary signal in the time domain is extended, in the frequency domain will lead to band narrowing 更多：https://www.bmcx.com/ , but the amplitude increased

翻译结果（英语）2：

Signal in the time domain when compressing a double, then widened in the frequency domain band, amplitude compression b times contrary signals in the time domain extension 更多：https://www.bmcx.com/ , caused by frequency domain band narrower, but high amplitude

翻译结果（英语）3：

Signal in time domain compression a times, then in frequency domain frequency band widened, amplitude compression b times; And signal in time domain expansion 更多：https://www.bmcx.com/ , in frequency domain will cause narrow band, but higher amplitude

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