地磁埸的成因是地球物理学的重大理论难题之一。

Formation cause of geomagnetic field is one of the important difficult problems of geophysics.

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利用许多地磁观测站的资料，地球物理学家对磁场及其变化方式进行数学描述。

Using data from many magnetic observatories, geophysicists can make mathematical representations of the field and how it is changing.

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利用许多地磁观测站的资料，地球物理学家对磁场及其变化方式进行数学描述。

Using data from many magnetic observatories, geophysicists can make mathematical representations of the field and how it is changing.

youdao