north-seeking pole 指北极 ; 指北端
north seeking pole 指北端
north-seeking pole of a magnet 北极
north-seeking polered marked pole 指北极
The direction of the earth's magnetic pole, to which the north-seeking pole of a magnetic needle points when free from local magnetic influence.
地球磁极的方向，当不受当地磁场影响时，用来寻找北方磁极指示的方向。
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