However there is a little study on how to apply the models to fuzzy environment.

然而这些模型在模糊环境下如何应用，尚缺乏研究。

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Study on models has been one of the active topics in this field.

其中，模型研究又是该领域中的活跃分支。

youdao

Study on models has been one of the active topics in this field.

其中，模型研究又是该领域中的活跃分支。

youdao