... geomagnetic train pulsation 地磁串列脉动 geomagnetic variation 地磁变化 geomagnetic vertical component 地磁垂直分量 ...
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period geomagnetic variation 地磁周期性变化
geomagnetic variation anomaly 变化磁场异常
geomagnetic variation on quiet day 地磁静日变化
geomagnetic variation detail 地磁变化
geomagnetic variation field 地球变化磁场
chart geomagnetic variation 赤道带地磁变化
No anomalous local secular geomagnetic variation has been found in the area.
测区内未发现有局部地磁长期变化异常。
With geomagnetic field model records, several kinds of secular variation of geomagnetic dipole moment and the position of the geomagnetic North Pole during the year 0 ~ 2000 a.
利用地磁场模型资料，计算和分析了公元0 ~ 2000年的地磁场偶极子磁矩和地磁北极位置的长期变化。
According to the observation data at Guangzhou geomagnetic observatory from 1958 to 1995, we summarize the laws of the geomagnetic secular variation in Guangzhou geomagnetic observatory.
本文利用1958 ~ 1995年已正式出版的《地磁观测报告》资料对广州地磁台地磁场的长期变化进行分析研究。
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