词汇“上溯”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	上溯
释义	上溯上溯[shàng sù]1.■ （逆着水流往上游走） sail upstream 常用词组1.■ （从现在往上推） trace back to:这个风俗可上溯到战国时代。The custom traces to the time of the Warring States.
随便看	frequency modulation type altimeter frequency multiplex frequency multiplexing frequency multiplexing technique frequency multiplication frequency multiplier frequency multiplier circuit frequency-multiplier klystron frequency offset frequency-offset transponder frequency optimum traffic frequency overlap frequency parameter frequency plot frequency polygon frequency protection frequency pulling frequency pulse frequency pushing frequency recorder frequency regulation frequency regulator frequency relation frequency relaxation spectrum frequency relay

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