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欧洲空间局：过去200年 全球磁场强度下降了9%
source link: https://tech.sina.com.cn/d/s/2020-06-09/doc-iircuyvi7464861.shtml
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新浪科技讯北京时间6月9日消息，地球磁场中一个长期存在的强度弱值区正变得越来越奇怪，甚至可能会分裂成两个截然不同的异常区域。南大西洋异常区（SouthAtlanticAnomaly）是地球磁场位于非洲和南美洲之间的一片区域，覆盖范围遍及南美
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