Document analysis and understanding is important part of OCR system.

版面分析与理解技术是OCR系统的重要组成部分。

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Then the electronic document exchange system for the overall analysis.

接着对电子公文交换系统进行了总体分析。

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Then the electronic document exchange system for the overall analysis.

接着对电子公文交换系统进行了总体分析。

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