Qu — Union framework IGM Series 25 regular jerseys

Union paintings — Series 25 regular meshesPolygonal elements representing the regular meshes of the cut on the scale 1:25,000 IGM relating to the territory of Sardinia. The meshes (dimensions of 6‘in latitude and 10’ in longitude) are a submultiple of the Union Framework Series 50 regular meshes.联合绘图——第25系列规则网格：多边形要素，用于表征撒丁岛（Sardinia）辖区内比例尺为1:25000的意大利军事地理研究所（IGM）分幅规则网格。该网格的纬度跨度为6′、经度跨度为10′，为联合框架系列50规则网格的子倍网格。