Each text block has relatively independent topic, and then a key sentence is identified for each text block. If the key sentence's semantic or structure is incomplete, it will be processed in order to its integrity.
该方法是基于文本主题分割后的结果,对每个相对独立的主题文本块进行主题识别,找出适合做文本块主题的关键句,并将其进行处理使得关键句语义完整。
参考来源 - 汉语文本主题分析技术的研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
Notice how sentence patterns can be useful to ask questions and provide answers. That is why learning even a few key sentence patterns can dramatically improve your English.
你会发现，句型在提问题以及回答问题方面非常有用，这就是为什么学几个关键的句型能大大提高你的英语水平的原因。
Please look for the key sentence in the article.
请把文章中的关键句找出来。
The results in experiment 1 showed that there is perceptual symbol representation in comprehension when subjects complete recognition task once after they read the key sentence.
实验1中被试读完句子以后马上进行图画探测任务，结果表明这时被试头脑中进行的是知觉符号表征。
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