north magnetic pole

基本解释

The North Magnetic Pole is moving slowly northwest across the northern stretches of Canada.
北磁極在緩慢地通過加拿大北方曏西北方曏移動。
This means that if you took two trips 10 years apart to the North Magnetic Pole by following a compass, you'd end up at a different destination each time. Theory 8: 2012 and the End of the World
這意味著，如果你相隔10年跟著指南針所指方曏去北極的話，那麽這兩次你所到的目的地是不同的。
Magnetic saturation effect on the saliency is used to distinguish the north magnetic pole from the south.
磁飽和影響的顯著性是用來區分從南部的北磁極。

A compass is a device containing a metal object that points toward the magnetic north pole.

The thin magnetic films can be manipulated to trigger vastly different signals depending upon which direction they face (basically "north pole" and "south pole"), allowing them to be read as the ones or zeros of basic computer code.
FORBES: Total Recall