等值线图是较为普遍的一种地图,地理事物的空间分布、演变以及地理各要素之间的相互联系都可以通过等值线图来展示。等值线图也是高考考查的最为常见的地理图像之一,因此判读与应用等值线图是地理高考复习的重点和难点。一、等值线图的种类和共同特征常见的等值线图有等高线图、等温线图、等压线图、等盐度线图、等降水量线图、等潜水位线图、等太阳高度线图、等太阳辐射量线图、等潜水位线图、等震线图、雪线高度等值 Contour map is a more common type of map, the spatial distribution of geographical things, evolution and geographical elements of each other can be interconnected through the contour map to show. Contour map is also one of the most common geographic images of college entrance examination test, interpretation and application of contour map is the focus of college entrance examination review and the difficulty. First, the type of contour map and the common characteristics Common contour map with contour plot, isotherm plot, isobar graph, isobaric graph, and other precipitation lines, such as submersible bitmap, Such as the sun’s altitude map, and other solar radiation line map, such as diving bitmap, isochrone map, snow line height equivalent