明确的结束会议-概括目标，概述结果，下一步行动，任务分派。
Close the meeting explicitly. - recap the goal, outline results, next actions.
本文概括描述了GPON技术的背景、标准协议的概述、系统中olt和ONU的功能结构和动态带宽分配算法。
The dissertation includes technique background of GPON, protocol summary, function architectures of OLT and ONU, DBA (dynamic band allocation) algorithm and so on.
文章第一部分为概述，概括介绍论文选题的原因及意义，当前国内外研究该领域的主要趋势及论文研究的主要内容和主要方法。
The first part contains an overview of the causes and significance of papers, the domestic and international trends in the field of research papers and the main content of papers.
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