It has deduced the mathematical function of the sediment void ratio on the basis of stress and structure analysis, and then the mass and volume conversion of deep bed filtration sediment is given.

通过受力情况和结构特性的分析，推导出了沉积物空隙率的函数表达式，在此基础上，给出沉积物质量与体积的换算关系。

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More advanced users will want to track things like conversion rate per keyword, most popular pages, backlink volume and quantity, etc.

大部分高端用户想要跟踪记录像关键词的平均转化率、最流行网页，反向链接（流）量和数量等等。

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Whole-hearted pursuit of more general, high-traffic search terms at the expense of lower-volume, high-conversion keywords may send you (and your money) barking up the wrong tree.

一心追寻更为通用及高流量搜索词，而忽略量小但高转换率之关键词，乃错投精力及金钱之举。

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Sales are a function of three variables: store traffic volume, conversion rate (i.e. percentage of visitors who purchase), and average ticket.

FORBES: How Having the Right Sales Data Can Prevent Black Friday Blues

The company charges fees based on transaction volume and also earns royalties and currency conversion fees.

FORBES: Quick Take

American Express earns revenues from card licensing fees, royalties on billings, charge volume, net spread revenue and cards in force, foreign exchange conversion revenue and also a share of the discount revenue earned by the operator.

FORBES: Quick Take