Two gold deposit evaluation information databases are set up in western Shandong, such as coordinate system with "degree" as its unit and coordinate system with the scale of 1.
建立起以“度”为单位的坐标系统和“1：50万”比例尺坐标系统的两套鲁西地区金矿评价信息数据库。
Two gold deposit evaluation information databases are set up in western Shandong, such as coordinate system with "degree" as its unit and coordinate system with the scale of 1.
建立起以“度”为单位的坐标系统和“1：50万”比例尺坐标系统的两套鲁西地区金矿评价信息数据库。
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