It just opens the hot and cold pipes by the right amount.

它只是打开适量的冷热管道。

Before, with both a string fixed at both ends, and an open pipe, the fundamental spanned half a wavelength.

以前，两端固定一个和弦，一个开放的双簧管 从两端看，基本面延伸至半波以上。

And we can do the exact same thing for a standing wave with two loose ends -- in an open pipe, for example, like in a flute.

我们可以用两侧驻波做同样的事情 Harin... 在一个开放的长笛中，例如，像长笛一样。

The water shortage has eased up a bit but not the indignity of finding water wherever and however you can, even coming from inside a highway tunnel and an open pipe.

水资源的短缺已经有所缓解，但这并不意味着随时随地都可以找到水源，即使是从公路隧道和开放式管道中取水。