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- 倍频程频率比率为2比1的两个频率的间隔
The interval between any two frequencies having a ratio of2 to1.
- 新雇人员比率补缺人员数与雇佣人员总数的比值
The ratio of this number to the number of employed workers.
- 放大率图像的尺寸和实物尺寸之间的比率
The ratio of the size of an image to the size of an object.
- 比率虽有下降，但微不足道。
The rate has fallen by an insignificant (ie too small to be important) amount.
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