基本释义:

磁变周期

网络释义

1)magnetic period,磁变周期

2)year of magnetic cycle transformation,磁周期转变年

3)short period geomagnetic variation,地磁短周期变化

4)period geomagnetic variation,地磁周期性变化

5)Anomaly of short period geomagnetic variation,地磁短周期变化异常

6)geomagnetic annual variation,地磁1年周期变化