In GIS, to set up coordinate system and scale correctly is a precondition that give full play to system's function and carry on space analyses.
在GIS中，正确地设置坐标系统和图件的比例尺，是充分发挥系统功能，进行空间分析的前提。
Gives the coordinate scale formulas of linear coordinate system of changeable range.
介绍了量程可变的线性坐标系统的坐标变换公式及其技巧。
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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