短語(yǔ)詞組短語(yǔ)geomagnetic activity effect 地磁效應(yīng)geomagnetic activity index 地磁指數(shù);[地物]地磁活動(dòng)指數(shù)solar activity and geomagnetic activity 太陽(yáng)活動(dòng)和地磁活動(dòng) 返回 geomagnetic activity