英语词汇harmonic progression怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	harmonic progression
释义	harmonic progressionn. (also 亦作 harmonic series) Math. a series of quantities whose reciprocals are in arithmetical progression 【数】调和级数
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