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中比例尺基础地质空间数据库全面开放2007年,中国地质调查局宣布,全面开放中比例尺基础地质图空间数据库,在线提供5000余种数字化图文地质资料及系列数据产
In 2007, the China Geological Survey announced that it will open up a full-scale spatial database of scale-based geological maps and provide online more than 5,000 kinds of digital geological data and series of data