isomagnetic chart

例句：

1. 1. The isomagnetic chart shows the distribution of iron in the earth's crust.
   磁化图显示了地球地壳中铁的分布情况。
2. 2. This is an important tool for studying the magnetic properties of materials.
   这是研究材料磁性属性的重要工具。
3. 3. The isomagnetic chart helps us understand the relationship between magnetism and electricity.
   磁化图帮助我们理解磁与电之间的关系。