Let me demonstrate to you the harmonic series.

我来为你们演示泛音列。

The second origin of music comes from the harmonic series, which is demonstrated by the open pipes without holes.

音乐的第二种起源是泛音列，它由无音孔开管形成。

There are many gravity quantities expressed by finite spherical harmonic series expansions in the computing for geopotential.

重力场计算中，经常需要计算以有限阶球谐级数表示的重力场元。

The harmonic series formula of the Earths disturbing potential is the most extensive applicable expression for the Earths gravity field model.

地球扰动位的球谐展开式表示是地球重力场模型应用最广泛的一种表示方法。

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.

这就是圆号上的泛音列,活瓣的作用是增长或减短,空气柱的高度,很像大提琴指板上的弦