The third part emphasizes the folk songs' function that different from other styles in emotion expressing, aesthetic views and practical aspects.

第三部分从表情、审美、实用三个方面对民歌的功能作了阐述，突出民歌语体有别于其它语体的特征。

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Therefore, taking advantage of AD device and digital filtering technique to realize mixing and other frequency transformation function is a comparatively advanced, novel and practical method.

因此，采用AD器件和数字滤波器技术实现混频等频率变换功能，是一种比较先进和新颖并且实际可行的方法。

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On the other hand, not only has the practical function of the door, mark the features, but also showed a strict rating system and become a culture of Confucian ceremony symbolic representation.

另一方面，它不仅具有纪念功能、实用功能，同时也表现出了严格的社会等级制度，是儒家礼制文化的一个表征符号。

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Content is a function -or let me say practical language, the purpose, in other words, of communicating facts or of communicating at all, which we associate with practical language -is a function of poetic language.

他们认为，内容即是功能,实用语言的目的，就是交流，我们总是把交流和实用语言联系,但其实它也是诗歌语言的功能。

耶鲁公开课 - 文学理论导论课程节选