针对前兆系统的现状和需求,基于对前兆数据管理系统中的元数据进行分析,结合地震前兆系统元数据的多样性、分布性、约束性等特点,设计了前兆元数据管理系统.%Aimed at the current situation and demand of earthquake precursor system and based on the analysis of existing metadata management method, the author design and implement a metadata management system for earthquake precursor data management system.
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