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Data Retrieval System
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engineering
data retrieval system
工程资料检索系统
geological survey analytical data storage and retrieval system
地质调查所分析数据存储与检索系统
加拿大
National Water Data Storage and Retrieval System
USGS
国家水资源数据存储与检索系统
美国地质调査局
topographic retrieval and data presentation system
地形学检索与数据显示系统
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