You've got to put more pressure on one side than the other if you want to push that gas through the throttle, right? So this is where the time scale issue comes into play.

如果你想让更多的气体通过节流阀,应该使一边的压强,大于另一边，是吗？所以这就是,时间尺度发挥作用的地方。

麻省理工公开课 - 热力学与动力学课程节选

So your time scale it just fast enough that this is basically an adiabatic compassion.

你的时间足够快以至于,基本上是一个绝热过程。

麻省理工公开课 - 热力学与动力学课程节选

But the difference is the time scale.

但是不同的是时间段。

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Last time we worked through this idea of the scale and how you can build triads on each of the members of the scale.

上节课我们已经讨论过音阶中的这个概念,以及你们怎样才能在音阶的各个音上组建起三和弦。

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So, this is a time course here, this scale is in days.

这是时间,这是在几天之内人体的变化

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All right, next time we're going to talk about a much better scale, which is the ideal gas thermometer and how we get to the Kelvin scale.

好，下次我们,会讲一种好得多的温标，关于理想气体温度计,和开氏温标的导出。

麻省理工公开课 - 热力学与动力学课程节选