The ratio between the two sides is one to four.

双方人数对比是一对四。

《新英汉大辞典》

So, they had the ratio of two to one, which gave them the octave, and three to two, which gave them the fifth, and four to three, which gave them the fourth.

他们发现,八度音程中,呈现的是二比一的比例,而五度音程中呈现三比二的比例,在四度音程中则呈现四比三的比例

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Suppose we have two tasks: one is to consume twice as much CPU time as the other, yielding a 2:1 ratio.

假设我们有两个任务：其中一个任务占用CPU的时间量是另一个任务的两倍，比例为2：1。

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"I would be pleased with a two-to-one ratio, " said Jeanne Brooks-Gunn, professor of child development at Teachers College at Columbia University in New York.

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Assuming this trade was a ratio spread, the trader might have sold 58, 000 October 4 puts, thus creating a two-to-one ratio with the purchased 29, 000 October 5 puts.

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They have been headed in that direction for several years--in 2006, digital sets will outsell analog sets at a ratio by a two-to-one ratio, the Consumer Electronics Association estimates--but the new law will accelerate that trend.

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