其他的版本还有名为Nibiru的行星撞向我们或者地球磁场翻转等灾难。
In other variations, a planet named Nibiru crashes into us or the Earth's magnetic field flips.
在周期的最后，磁场的两极快速翻转。
At the end of a cycle, the magnetic field rapidly reverses its polarity.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past - sometimes the field completely flips, with the north and the south poles swapping places.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转，地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past —sometimes the field completely flips, with the north and the south poles swapping places.
他们指出，地球曾在过去发生磁极翻转，这是谁都无法否认的事实。通过研究太阳黑子或者磁场，我们可以对磁极翻转进行计算。
They point to evidence of pole shifts in Earth's past and claim that these reversals can be calculated by studying sunspots or magnetic field theory.
在翻转期间，磁场保持它的双极子外形，保留了古磁学家一直能够追踪南极踪迹的现象。
And during the transition, the field retains its dipole shape, a phenomenon paleomagnetists have traced all the way to the south pole.
在翻转期间，磁场保持它的双极子外形，保留了古磁学家一直能够追踪南极踪迹的现象。
And during the transition, the field retains its dipole shape, a phenomenon paleomagnetists have traced all the way to the south pole.
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