earth rs magnetism是什么意思 earth rs magnetism怎么读
earth rs magnetism的用法和样例
- This book is about the earth's magnetism.
这本书是有关于地磁的。 - Data on the Earth's ancient magnetic field are available from archeomagnetic and paleomagnetic measurements.
有关地球古磁场的数据是通过古地磁粗额测量而得来的。
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