The existing theory of international trade could be distinguished into two main sorts named comparative advantage based on factor analysis and competitive advantage based on competitiveness.

基于要素分析的比较优势理论和基于竞争力分析的竞争优势理论是国际贸易的两个主要理论。

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Estimation is a major factor in enterprise risk analysis and risk management because every enterprise decision makes assumptions about the flow of events, which is largely based on estimates.

在企业的风险分析和管理中，评估是一个主要的因素，因为每个企业的决策都要对事件的活动做出假定，而这在很大程度上是基于评估的。

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For instance, when indexing web pages, it may be useful to store extra information about a particular word, such as an associated URL or weighting factor based on some analysis of the text.

例如，当索引Web页面时，储存某个关键词的额外信息可能会很有用，例如这个关键词关联的URL或者经过文字分析后得出的权重系数。

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