每一次重复都使模型结构与实验结果更加吻合。当这两者之间的差异可以忽略时，这一衍射图形便得到求解。

Each round of iteration brings the model structure into better agreement with the experimental data; when the difference between the two is negligible the diffraction pattern is said to be "solved."

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专家说，肥胖的灵长类动物可以作为有用的模型，相比实验室的小白鼠，无论在生理结构上还是摄食习性上，它们同人类都更为近似。

The corpulent primates serve as useful models, experts say, because they resemble humans much more than laboratory rats do, not only physiologically but in some of their feeding habits.

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根据对工艺和实验数据的分析及预测目标等条件，确定了模型的结构。

The model structure was designed based on the analysis of technology and experiment data as well as forecast target.

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