同时本文作者还对这四种主要次语体的功能文体特征进行了进一步的对比研究。

Meanwhile, the author also conducts a comparative study of the stylistic features of the four sub-styles of radio English news.

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科技文摘，在语篇结构、文体风格、社会功能等方面具有特定的体裁特征。

Technical abstracts have their own features in terms of communicative functions, linguistic patterns and textual structures.

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功能语旨是区分次语体和研究文体特征的主要因素。

Functional tenor is a key factor in differentiating sub-style and research on stylistic feature.

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