GREENLAND was discovered without the use of magnetic compasses.
格陵兰岛被人类发现没有借助于磁罗盘。
Shipbuilding. magnetic compasses, binnacles, azimuth reading devices. vocabulary.
造船工业。磁罗盘罗盘座和方位角读数装置。词汇。
They sailed as far as America without the aid of magnetic compasses, which was no mean feat.
他们扬帆起航远至美洲，这在当时没有指南针的情况下绝非易事。
Dr Ropars suspects it was being used as a sunstone because the magnetic compasses of the day were thrown out of kilter by iron cannon.
罗帕斯博士怀疑它曾经被当做太阳石使用，因为在白天，磁性罗盘会因为铸铁的大炮失去平衡。
Besides directing compasses, the Earth's magnetic field reaches out into space to direct the flow of the solar wind around the planet-forming a structure called the magnetosphere (depicted above).
地球的磁场效应不仅能够指引指南针，还能够将其效应延伸至宇宙空间来指引地球四周的太阳风的流向，这样就形成了一种称为“磁气圈”的结构(如上图所示)。
Kuo discovered that compasses do not point true north but to the magnetic North Pole. This was a decisive step to make them useful for navigation.
沈括发现，指南针并不是真正的指向北方，而是指向地磁的北极，这对指南针用于导航走出了决定性的一步。
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。
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。
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