His research led to the discovery that all newly built iron ships had their own magnetic influence on compasses.
他的研究发现，每一艘新铁船对航海罗盘都会产生自己的磁力影响。
The magnetic influence of the inner spheres know no barriers of national frontiers or any other conventional limitations.
精神世界的磁性影响是不受国界或其它常规限制的局限的。
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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