用“harmonic series”造句大全,harmonic series造句 国语站 造句 9.19K 大中小设置文字大小 Let me demonstrate to you the harmonic series.That's the harmonic series that's on that, and what the valves do is they shorten and lengthen that vibrating column of air very much like the cello string on the fingerboard. TAG标签:造句 series harmonic #