The effects of draw-down ratio, air-layer length, drawing conditions on the structure and properties of the fiber were discussed.

探讨了喷丝头拉伸比，空气层长度，拉伸条件对纤维结构性能的影响。

youdao

That ratio may have been higher in the nineteenth century; it's gradually trending down, but it's a slow-moving thing.

在19世纪这个比率要高一些,然后逐渐下降,但这是个缓慢变化的过程

耶鲁公开课 - 金融市场课程节选

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

Anyway, your loan-to-value ratio is getting pretty precarious because your house is now down 30% in value; your loan-to-value ratio, if we were to give you $5,000, would be something like 90%.

你的贷款价值比变得很不安全,因为你的房子已经贬值30%,如果我们借给你5000美金,你的贷款价值比率在90%左右

耶鲁公开课 - 金融市场课程节选

The move aided the appeal of municipal issues by bringing down the ratio to 97.4% making it the most attractive for munis since January.

FORBES: Corporate Paper Overlooked As Traders Move To Treasuries

The conventional stripped-down expense ratio, excluding brokerage, has its defenders.

FORBES: Hidden Expenses

They need to get that ratio down to 3-1 by next year.

FORBES: Insurance Premiums are Going to Spike This Fall - Big Time