You could choose any real number in the interval .

你可以选择0到4间的任意实数

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What he concluded was, these pigeons were trying to figure out what makes those pieces of corn come and they started to think well,they had to get the interval between corns right to make this work.

他总结出这些鸽子都在绞尽脑汁,想知道玉米从那来的,它们只能利用,那15秒的间隔去想清楚这个问题

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We can just play with that particular interval to change entirely the way we feel about particular melodies.

我们只需关注这一特别的音程,是如何彻底改变我们对某些旋律的感受的

耶鲁公开课 - 聆听音乐课程节选

And so, there is the distinction between fixed schedules versus ratios, variable schedules and ratio versus interval.

因此，在固定时程与变化时程之间,以及在比率与间隔之间，存在着一些区别。

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We'll be talking about the fact that this is an interval of a third; it spans three letter names a little bit later on.

我们以后会谈到,这其实是个三度音程,它跨越了三个音名

耶鲁公开课 - 聆听音乐课程节选

Then the next pitch on the trumpet is actually an interval of a fifth.

然后下一个音高在小号那里,实际上是一个五度音程

耶鲁公开课 - 聆听音乐课程节选