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Any mathematical model of reality relies on simplifications and assumptions .

任何现实的数学模型都依赖于简化和假设。

These simplifications must be kept in mind in what follows .

必须牢记这种简化的后果。

Alas , both have become more politicized or in need of attention-getting simplifications .

唉，它们都变得更加政治化或需要进行明显精简。

A number of simplifications have been made to the taxation system .

税收制度已经历过多次简化。

As a preprocessing step , several simplifications are made to predicates in the original statement once view expansion and merging have taken place .

作为一个预处理步骤，视图扩展和合并一旦发生，就会对初始语句中的谓语进行一些简化。