The blend behaved better when adding carbon black and talc at the ratio of 15:15.

炭黑与滑石粉配合使用且配比为15：15时，共混物的性能较好。

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In original English language for the 1st impression. The Net Price to the Publisher is at the ratio 1.6 of the PPB cost.

原书第一次印刷的文字形式是英文。出版者支付的净价依据PPB成本1.6的比率计算。

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Results showed that the LAS and AEO-9 mixtures at the ratio of 1:4 had minimum surface tension and the best synergic effect.

研究表明：几种表面活性剂在混合后表面张力最小，协同作用最显著的是LAS与AEO - 9比例为1∶4的复配溶液。

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We had a similar, even higher price-to-earnings ratio of about forty-six at the peak in 2000 and it corrected way down.

000年时我们的市盈率甚至更高,达到了46,后来经过修正降低了

耶鲁公开课 - 金融市场课程节选

That is the whole triumph of calculus is to know that by looking at the position now, the position slightly later and taking the ratio and bringing later as close as possible to right now, we define a quantity that we can say is the velocity at this instant.

这就得靠微积分了,通过了解它现在的位置,和一小段时间以后的位置,计算它们的比,再让时间间隔尽可能缩短,我们就定义了一个,被我们称之为瞬时速度的物理量

耶鲁公开课 - 基础物理课程节选

In comparing drug companies (or software or chip or computer companies), you can look not only at the ratios of price-to- earnings but also at the ratio of price-to-innovation-adjusted earnings.

FORBES: Innovation

Indeed, a casual look at the ratio of corporate profits to net assets since the early 1950s shows two peaks: in the mid-1960s and late-1990s, both periods of robust growth.

ECONOMIST: Has the tide turned for corporate profits?

The picture is altered a bit when you look at the ratio of government debt to GDP, which is forecast by the European Commission at 89% for the UK next year, 74% for Spain and 121% for Italy.

BBC: Why investors love lending to the UK government