On the basis of some necessary assumptions, applying the methods of probability theory and search theory, the searching effectiveness model was set up.

在进行了必要假设的基础上，应用概率论和搜索论建立了效能模型。

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The assumptions and constraints are analyzed for completeness, with additional assumptions and constraints added as necessary.

分析假设和制约因素时要注意是否完整，在必要时可以添加。

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This price could change depending upon accuracy of assumptions made due to limited information being made available and restricted time to review all necessary details.

由于资料和时间的有限，最终价格可能会根据实际情况进行改动。

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"There are a lot of complex assumptions necessary to do adjustments, and reasonable people will disagree about the best way to proceed, " she says.

WSJ: Why Surveys Should Listen More to Prisoners

And it cited the Scottish government's own assumptions that road pricing would be necessary.

BBC: Climate measures 'bring benefits'

For example, if robotic devices can restore sight or mobility, it may be necessary to redefine what disability is which might, in turn, conflict with the assumptions on which existing disability-rights legislation is based.

ECONOMIST: Monitor