Name the major ratios useful in assessing (a) liquidity and

With large surface-to-volume ratios and Debye length comparable to their small size,这句话怎么翻译

英语翻译
The aspect ratios of the two samples were 4.75 and 11.2,respectively.
主要翻译 aspect ratios 的意思
这是有关纳米材料的一篇文章

英语翻译
hydraulic ratios are combined with a mechanical force or torque ratio for optimum machine designs such as boom movements and trackdrives for an excavator.
英语大侠们,请帮我翻译一下这句话得中文意思吧,

几道英文初级金融题目.
1.Which of the following ratios appears on acommon-size balance sheet?
I.Debt to asset ratio
II.Net working capital to total assets
III.Net profit margin
a.I ,II,III
b.I only
c.I and III
d.III only
2.Grandma's Applesauce,Inc.has a 0.60probability of a good year with operating cash flow of $50,000; and 0.40probability of a bad year with operating cash flow of $30,000.The company hasa debt of $35,000 with 8 percent interest due next year.Assuming the companyhas no means of servicing its debt other thanoperations,and a 0% tax rate,which of the following is true?
a.Shareholders expected claim is $12,200
b.Creditors expected claim is $37,800
c.Creditors expected claim is $34,680
d.None of the above
3.Share repurchases and dividend payouts aremost likely to differ in their
a.effects on a firm'scapital structure
b.effects on corporate taxes
c.effects on corporate cash flow
d.effects on shareholders' personal taxes
4.判断是非.The higher the opportunity cost of capitalthe higher the NPV.
True OR False
5.The cost of capital for anall-equity-financed company that pays no dividends is zero.
True OR False

英语翻译
LDA was applied to evaluate which of these three ratios provided the maximum discrimination (i.e.,best predictor) between the cell lines.(1,3,28,29) We applied LDA in a stepwise fashion.First,we applied LDA to each polymer separately,where we evaluated each potential peak value based on its ability to discriminate between (or predict) the four cell lines.Each of these analyses was conducted using 32 observations (4 cell lines × 8 replications) and 4 variables (the cell line indicator and the three emission intensity wavelength variables).This LDA analyses step identifies the optimal intensity of 410 nm for the P2 polymer and 420 nm for the P1 polymer.
请翻译得能让我读懂,不要使用网上在线翻译,
我把这段话的上一段考下来供各位参考
Other proteins in the conditioned media are interacting with the polymers,causing the observed intensity changes in the emission spectra.While we do not have an explanation yet for the observed pattern of emission intensity changes,we reasoned that these differential modulations can be used to distinguish the cancer cells.In this endeavor,we calculated the ratios of emission intensity (410,510,and 541 nm for P1; 420,520,and 541 nm for P2) in the presence of conditioned and unconditioned culture media (Table S-2,Supporting Information).These ratios were subsequently subjected to linear discriminant analysis (LDA).

ratios and unit rates
我不太懂这么做关于这些的题目
比如：3.5qt/min.=( )gal/h
怎么得出来?
可以再清楚的说明吗!