abnormal magnetic variation

例句：

1. 1. The scientists detected anabnormal magnetic variation in the region.
   科学家们在该地区检测到了异常磁变。
2. 2. This isa rare phenomenon that requires special attention dueto its abnormal magnetic variation.
   这是一个罕见的现象，由于其异常磁变，需要特别注意。
3. 3. The research team conducted experiments to studythe abnormal magnetic variation in the area.
   研究小组进行了实验，以研究该区域的异常磁变。