The formula shows the transport rate is not a constant but varies with the relative exposure degree of particles that lying on riverbed when the flow intensity is at fixed value.

提出了一种计算推移质输沙率的方法及公式，该公式表明，在水流强度一定时，输沙率并非为一个常量，而是随颗粒在床面的相对暴露度而变。

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Relative porosity factor value can be used to characterize the relation between the molecular size of the polymer and the its retention in the flow of polymer solution through porous media.

相对孔隙系数值可用以表征聚合物溶液流经孔隙介质时聚合物分子尺寸与滞留作用的关系。

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At present, widely used assessment methods are discount cash flow, relative value assessment and EVA, etc.

目前，较为常用的评估方法有贴现现金流法、相对价值评估法、EVA等评估方法，文章将对上述几种方法进行浅析。

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Value stocks had lowest prices relative to earnings, cash-flow and book value and the highest cash dividends.

FORBES: Value Stocks are in the Eye of the Beholder

Growth stocks had the highest prices relative to earnings, cash-flow and book value as well as the lowest cash dividends.

FORBES: Value Stocks are in the Eye of the Beholder

On our relative valuation tables, France is looking good trading at 5.4 times cash flow and 1.54 times book value.

FORBES